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USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker

USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker

USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
USA Standard Gear SL D30-27 Dana 30 differential-27 Spline axles Spartan Locker
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Features

  • Easy, drop-in installation
  • Made from 9310 steel
  • Heat treated and precision cut teeth
  • Backed by 1 year warranty.Replaces the spiders in a standard carrier case
  • Fits Dana 30 differential with 27 spline axles

Description

The Spartan Locker from USA Standard Gear is the perfect blend of affordability and performance. Designed for off-road usage, this lunchbox locker is easy to install and provides a significant increase in strength over stock differentials. Drop a Spartan in your Jeep or 4x4 today, and take to the trail with confidence!Technical Notes: If purchasing this unit for a Non-Rubicon JK front, you will also need to purchase carrier case part number YC D706008.


Brand USA Standard Gear


Model Spartan Locker for Dana 30 Differential 27 Spline SL D44-19


Item Weight 4.65 pounds


Package Dimensions 10.7 x 6.1 x 2.7 inches


California residents Click here for Proposition 65 warning


Item model number SL D30-27


Exterior Machined


Manufacturer Part Number SL D30-27


OEM Part Number SLD3027


Folding No


Cover Included Spartan Locker


ASIN B007N3P9DA


Customer Reviews 4.5 out of 5 stars 389 ratings 4.5 out of 5 stars


Best Sellers Rank #16,723 in Automotive (See Top 100 in Automotive) #4 in Automotive Replacement Differential Assembly Kits


Shipping Weight 4.75 pounds (View shipping rates and policies)


Date First Available February 13, 2012


Shipping

This product includes free shipping to all US addresses.


Delivery

Unless otherwise stated above, most products arrive within 2-3 business days. Larger items may take 6-9 business days. Tracking information will be automatically provided as soon as your order ships.


View our full shipping policy here.

Returns

This product can be returned within 30 days of delivery for a full refund. Please visit our returns center to begin a return.

View our full returns policy here.

Features

  • Easy, drop-in installation
  • Made from 9310 steel
  • Heat treated and precision cut teeth
  • Backed by 1 year warranty.Replaces the spiders in a standard carrier case
  • Fits Dana 30 differential with 27 spline axles

Description

The Spartan Locker from USA Standard Gear is the perfect blend of affordability and performance. Designed for off-road usage, this lunchbox locker is easy to install and provides a significant increase in strength over stock differentials. Drop a Spartan in your Jeep or 4x4 today, and take to the trail with confidence!Technical Notes: If purchasing this unit for a Non-Rubicon JK front, you will also need to purchase carrier case part number YC D706008.


Brand USA Standard Gear


Model Spartan Locker for Dana 30 Differential 27 Spline SL D44-19


Item Weight 4.65 pounds


Package Dimensions 10.7 x 6.1 x 2.7 inches


California residents Click here for Proposition 65 warning


Item model number SL D30-27


Exterior Machined


Manufacturer Part Number SL D30-27


OEM Part Number SLD3027


Folding No


Cover Included Spartan Locker


ASIN B007N3P9DA


Customer Reviews 4.5 out of 5 stars 389 ratings 4.5 out of 5 stars


Best Sellers Rank #16,723 in Automotive (See Top 100 in Automotive) #4 in Automotive Replacement Differential Assembly Kits


Shipping Weight 4.75 pounds (View shipping rates and policies)


Date First Available February 13, 2012


Shipping

This product includes free shipping to all US addresses.


Delivery

Unless otherwise stated above, most products arrive within 2-3 business days. Larger items may take 6-9 business days. Tracking information will be automatically provided as soon as your order ships.


View our full shipping policy here.

Returns

This product can be returned within 30 days of delivery for a full refund. Please visit our returns center to begin a return.

View our full returns policy here.

Features

  • Easy, drop-in installation
  • Made from 9310 steel
  • Heat treated and precision cut teeth
  • Backed by 1 year warranty.Replaces the spiders in a standard carrier case
  • Fits Dana 30 differential with 27 spline axles

Description

The Spartan Locker from USA Standard Gear is the perfect blend of affordability and performance. Designed for off-road usage, this lunchbox locker is easy to install and provides a significant increase in strength over stock differentials. Drop a Spartan in your Jeep or 4x4 today, and take to the trail with confidence!Technical Notes: If purchasing this unit for a Non-Rubicon JK front, you will also need to purchase carrier case part number YC D706008.


Brand USA Standard Gear


Model Spartan Locker for Dana 30 Differential 27 Spline SL D44-19


Item Weight 4.65 pounds


Package Dimensions 10.7 x 6.1 x 2.7 inches


California residents Click here for Proposition 65 warning


Item model number SL D30-27


Exterior Machined


Manufacturer Part Number SL D30-27


OEM Part Number SLD3027


Folding No


Cover Included Spartan Locker


ASIN B007N3P9DA


Customer Reviews 4.5 out of 5 stars 389 ratings 4.5 out of 5 stars


Best Sellers Rank #16,723 in Automotive (See Top 100 in Automotive) #4 in Automotive Replacement Differential Assembly Kits


Shipping Weight 4.75 pounds (View shipping rates and policies)


Date First Available February 13, 2012


abunda_amazon_reviews I installed it into a Dana 30 HP for my 99 XJ. Really easy to install, it took a couple of hours. Perfect fit, follow the instructions to the dot and you will be pleased. For my application, it is really quite, I can barely hear it while turning. BE AWARE, it might lock and unlock (in 2WD) the first 10 miles. I drove my Jeep to a parking lot and drove in circles forward and backward for a few minutes to help lubrication and to brake-in the locker. Then I drive around town for 20 min. Finally, I took it to a fire road to see how the locker works, I put it in 4 low works like a dream. It is a day and night difference. Ever since I have driven the jeep on the freeway for over 200 miles (commuting) and that has helped with lubrication. Now the locker is even quieter. I am planning on replacing the diff fluid in a few more hundred miles to remove any potential debrief from the brake-in process.. Instructions don't say anything about it but I figure gear oil is cheaper so why not. I should be going to Moab and other off-road trails in the following months, I will give an update on how it holds. UPDATE 10/23/2019 - I have run it for about 1000 miles, I have got really quire, even when I am at full lock turning in parking lots. I run Valvoline 80w-90. I have taken it off-road (Moderate trails) and it has performed great. Something that I have noticed is that right after using it on the trails, I would go back into 2WD and it gets way noisy!!!! but after driving for 20 miles it goes back to quite mode!! Loving it! IT WOULD LOCK AND UNLOCK once in a while when backing up and turning, but you can feel it in the steering wheel, it makes a loud pop noise, but if you were the one installing it you won't freak out, you would be able to tell "bad breaking noyses" from the locker loading and unloading lol 11/21/2019 Took it to rattlesnake trail (moderate to difficult) in Utah. I performed great. I was able to struggle less than my buddies with larger tires and open differentials. I have put around 3k miles on it. The more I drive it the quieter it gets. Now I can only hear it sometimes when turning full-lock on parking lots. It stopped locking-unlocking on his own while driving in 2WD on parking lots and tight places. I will keep you all posted. 12/19/2019 I have driven it for 4k miles now. I went to Moab last weekend. Wheeling on slick rock was like driving on pavement sometimes. The Locker would bind and lock and unlock pretty hard. So I had to take my turns pretty easy and some times I would cost in neutral. (I have a 5 speed). I still love it, I got me over obstacles way smoother than my buddies with bigger tires. I was able to take the hard lines on trail w/o major issues. The locker has gone quieter after many miles. I can hardly hear it while turning in parking lots.;;Reviewed in the United States on September 10, 2019;;5.0 out of 5 stars;;Perfect Fit, Easy to install UPDATED 12/19/2019;;Analy;;/gp/customer-reviews/R229VNTEQ43U2N/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B007N3P9DA;;;If you decide to go this route it’s a budget locker it works well install is about 3-4 hrs taking your time . Driving with it takes some getting use to but others may have different affects It will magnify any loose steering you have also check all ujoints on axle shafts And make sure to take up to freeway speeds drive to insure you did correctly Also make sure to change your diff fluid after couple hundred miles you’ll see so brass shaving in oil so don’t freak out Take corners easy don’t go full lock steer other than that it is pretty dang good First week was very nosiy after that the locker quited down and I barley here it ratcheting;;Reviewed in the United States on January 28, 2018;;5.0 out of 5 stars;;Budget locker bang for your buck;;Casey Espeseth;;/gp/customer-reviews/R1Y0GTSUY9K2I3/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B007N3P9DA;;;USA standard gear's Spartan locker is the first locker I've ever driven and this was the first time I ever took an axle apart. Took me a couple hours to get everything disassembled but what a simple install. No more spider gears crawling through my diff, now I can show off on the trail and stall more, lockers take some getting used to but they're an incredible off-road upgrade especially for the price. I'm driving a 95 Jeep Wrangler lifted 4" with 33s converted to a tj style front axle shaft and I don't notice my spartan locker at all while driving in 2wd unless I move the wheel left to right while stationary. It's a locker, and so far it works great.;;Reviewed in the United States on June 30, 2017;;5.0 out of 5 stars;;Locked and ready;;hi;;/gp/customer-reviews/R1Z4MVGBVZ5J0K/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B007N3P9DA;;;Bought a front for my D30 and rear for my 8.25 and am very satisfied with them. On road is not bad and I don't mind the tick in reverse and gunshot when the front unlocks sometimes, I wheel my jeep, I didn't buy these for other's opinions. On the rocks they are flawless. I'm sure I'll break axle shafts soon but for now, I am unstoppable. These are very easy to install and all parts and instructions were provided. Spartan lockers are great.;;Reviewed in the United States on November 17, 2014;;5.0 out of 5 stars;;I am unstoppable. Until I break an axle shaft.;;Jody Kemper;;/gp/customer-reviews/R9VT4V6TJ6GEG/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B007N3P9DA;;;Like everyone says, the instructions are garbage. This is how it stacks up: (Drivers side) outer spider gear, c-clip for axle, bushing, inner spider gear. Then Passenger side, same as drivers but leave out the c clip. After you get the spider gears and bushing in, insert the center pin. Then rotate the locker until you see the cutout between the spider gears. Insert the passenger c-clip here. Will take some doing because the axle has to be worked in and out until the spline cutout for the clip lines up with the opening. Make sure there is loctite on your center pin bolt. **This writeup is for information purposes only. I do not accept any responsibility for what you do with this part or how it is installed in your vehicle**;;Reviewed in the United States on May 24, 2018;;5.0 out of 5 stars;;Good but instructions are crap;;Robert Anderson;;/gp/customer-reviews/R2ASUN4JST8DPX/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B007N3P9DA;;;I installed this in my 2014 Jeep Unlimited Sport. Off-roading is night and day difference. You get all the power you need to the front axle when you need it now. Very easy to install, I would say about two hours. You will hear the locker clicking when you are making a sharp turn, but that is normal. UPDATE: I must say these are good lockers, I just don't like when they decide on their own to lock in place on a slight turn and make a loud bang when they unlock. It almost felt like my axle was snapping. I've since removed them to check for any damages and nothing was wrong with the locker and decided to put the gears back in.;;Reviewed in the United States on June 6, 2017;;4.0 out of 5 stars;;Wheeling Time.;;Jeffrey;;/gp/customer-reviews/R2UVPDFA5SGVXY/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B007N3P9DA;;;In my opinion lunchbox lockers are one of the best "bang for the buck" modifications you can do to a vehicle intended for off road use. I don't see this breaking anytime soon, especially in a dana 30 I'd expect to break a U-joint first, if at all if you stay with a recommended sized tire. I've installed probably half a dozen of these style lockers and overall install took about 2-3 hours. Of all the brands I've installed the spartan locker is my favorite, despite being occasionally noisy when turning.;;Reviewed in the United States on February 5, 2016;;4.0 out of 5 stars;;In my opinion lunchbox lockers are one of the best "bang for the buck" modifications you can do to ...;;Nick R.;;/gp/customer-reviews/R1YVTS5HHWQOFY/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B007N3P9DA

Shipping

This product includes free shipping to all US addresses.


Delivery

Orders placed now will arrive in 6-9 business days. Tracking information will be automatically provided as soon as your order ships.


View our full shipping policy here.

Returns

This product can be returned within 30 days of delivery for a full refund. Please visit our returns center to begin a return.

View our full returns policy here.

Top Amazon Reviews


5.0 out of 5 stars
By Analy - Reviewed in the United States on September 10, 2019
Perfect Fit, Easy to install UPDATED 12/19/2019
I installed it into a Dana 30 HP for my 99 XJ. Really easy to install, it took a couple of hours. Perfect fit, follow the instructions to the dot and you will be pleased. For my application, it is really quite, I can barely hear it while turning. BE AWARE, it might lock and unlock (in 2WD) the first 10 miles. I drove my Jeep to a parking lot and drove in circles forward and backward for a few minutes to help lubrication and to brake-in the locker. Then I drive around town for 20 min. Finally, I took it to a fire road to see how the locker works, I put it in 4 low works like a dream. It is a day and night difference. Ever since I have driven the jeep on the freeway for over 200 miles (commuting) and that has helped with lubrication. Now the locker is even quieter. I am planning on replacing the diff fluid in a few more hundred miles to remove any potential debrief from the brake-in process.. Instructions don't say anything about it but I figure gear oil is cheaper so why not. I should be going to Moab and other off-road trails in the following months, I will give an update on how it holds. UPDATE 10/23/2019 - I have run it for about 1000 miles, I have got really quire, even when I am at full lock turning in parking lots. I run Valvoline 80w-90. I have taken it off-road (Moderate trails) and it has performed great. Something that I have noticed is that right after using it on the trails, I would go back into 2WD and it gets way noisy!!!! but after driving for 20 miles it goes back to quite mode!! Loving it! IT WOULD LOCK AND UNLOCK once in a while when backing up and turning, but you can feel it in the steering wheel, it makes a loud pop noise, but if you were the one installing it you won't freak out, you would be able to tell "bad breaking noyses" from the locker loading and unloading lol 11/21/2019 Took it to rattlesnake trail (moderate to difficult) in Utah. I performed great. I was able to struggle less than my buddies with larger tires and open differentials. I have put around 3k miles on it. The more I drive it the quieter it gets. Now I can only hear it sometimes when turning full-lock on parking lots. It stopped locking-unlocking on his own while driving in 2WD on parking lots and tight places. I will keep you all posted. 12/19/2019 I have driven it for 4k miles now. I went to Moab last weekend. Wheeling on slick rock was like driving on pavement sometimes. The Locker would bind and lock and unlock pretty hard. So I had to take my turns pretty easy and some times I would cost in neutral. (I have a 5 speed). I still love it, I got me over obstacles way smoother than my buddies with bigger tires. I was able to take the hard lines on trail w/o major issues. The locker has gone quieter after many miles. I can hardly hear it while turning in parking lots.

5.0 out of 5 stars
By Casey Espeseth - Reviewed in the United States on January 28, 2018
Budget locker bang for your buck
If you decide to go this route it’s a budget locker it works well install is about 3-4 hrs taking your time . Driving with it takes some getting use to but others may have different affects It will magnify any loose steering you have also check all ujoints on axle shafts And make sure to take up to freeway speeds drive to insure you did correctly Also make sure to change your diff fluid after couple hundred miles you’ll see so brass shaving in oil so don’t freak out Take corners easy don’t go full lock steer other than that it is pretty dang good First week was very nosiy after that the locker quited down and I barley here it ratcheting

5.0 out of 5 stars
By hi - Reviewed in the United States on June 30, 2017
Locked and ready
USA standard gear's Spartan locker is the first locker I've ever driven and this was the first time I ever took an axle apart. Took me a couple hours to get everything disassembled but what a simple install. No more spider gears crawling through my diff, now I can show off on the trail and stall more, lockers take some getting used to but they're an incredible off-road upgrade especially for the price. I'm driving a 95 Jeep Wrangler lifted 4" with 33s converted to a tj style front axle shaft and I don't notice my spartan locker at all while driving in 2wd unless I move the wheel left to right while stationary. It's a locker, and so far it works great.

5.0 out of 5 stars
By Jody Kemper - Reviewed in the United States on November 17, 2014
I am unstoppable. Until I break an axle shaft.
Bought a front for my D30 and rear for my 8.25 and am very satisfied with them. On road is not bad and I don't mind the tick in reverse and gunshot when the front unlocks sometimes, I wheel my jeep, I didn't buy these for other's opinions. On the rocks they are flawless. I'm sure I'll break axle shafts soon but for now, I am unstoppable. These are very easy to install and all parts and instructions were provided. Spartan lockers are great.

5.0 out of 5 stars
By Robert Anderson - Reviewed in the United States on May 24, 2018
Good but instructions are crap
Like everyone says, the instructions are garbage. This is how it stacks up: (Drivers side) outer spider gear, c-clip for axle, bushing, inner spider gear. Then Passenger side, same as drivers but leave out the c clip. After you get the spider gears and bushing in, insert the center pin. Then rotate the locker until you see the cutout between the spider gears. Insert the passenger c-clip here. Will take some doing because the axle has to be worked in and out until the spline cutout for the clip lines up with the opening. Make sure there is loctite on your center pin bolt. **This writeup is for information purposes only. I do not accept any responsibility for what you do with this part or how it is installed in your vehicle**

4.0 out of 5 stars
By Jeffrey - Reviewed in the United States on June 6, 2017
Wheeling Time.
I installed this in my 2014 Jeep Unlimited Sport. Off-roading is night and day difference. You get all the power you need to the front axle when you need it now. Very easy to install, I would say about two hours. You will hear the locker clicking when you are making a sharp turn, but that is normal. UPDATE: I must say these are good lockers, I just don't like when they decide on their own to lock in place on a slight turn and make a loud bang when they unlock. It almost felt like my axle was snapping. I've since removed them to check for any damages and nothing was wrong with the locker and decided to put the gears back in.

4.0 out of 5 stars
By Nick R. - Reviewed in the United States on February 5, 2016
In my opinion lunchbox lockers are one of the best "bang for the buck" modifications you can do to ...
In my opinion lunchbox lockers are one of the best "bang for the buck" modifications you can do to a vehicle intended for off road use. I don't see this breaking anytime soon, especially in a dana 30 I'd expect to break a U-joint first, if at all if you stay with a recommended sized tire. I've installed probably half a dozen of these style lockers and overall install took about 2-3 hours. Of all the brands I've installed the spartan locker is my favorite, despite being occasionally noisy when turning.

Recent Reviews


5.0 out of 5 stars
By Analy - Reviewed in the United States on September 10, 2019
Perfect Fit, Easy to install UPDATED 12/19/2019
I installed it into a Dana 30 HP for my 99 XJ. Really easy to install, it took a couple of hours. Perfect fit, follow the instructions to the dot and you will be pleased. For my application, it is really quite, I can barely hear it while turning. BE AWARE, it might lock and unlock (in 2WD) the first 10 miles. I drove my Jeep to a parking lot and drove in circles forward and backward for a few minutes to help lubrication and to brake-in the locker. Then I drive around town for 20 min. Finally, I took it to a fire road to see how the locker works, I put it in 4 low works like a dream. It is a day and night difference. Ever since I have driven the jeep on the freeway for over 200 miles (commuting) and that has helped with lubrication. Now the locker is even quieter. I am planning on replacing the diff fluid in a few more hundred miles to remove any potential debrief from the brake-in process.. Instructions don't say anything about it but I figure gear oil is cheaper so why not. I should be going to Moab and other off-road trails in the following months, I will give an update on how it holds. UPDATE 10/23/2019 - I have run it for about 1000 miles, I have got really quire, even when I am at full lock turning in parking lots. I run Valvoline 80w-90. I have taken it off-road (Moderate trails) and it has performed great. Something that I have noticed is that right after using it on the trails, I would go back into 2WD and it gets way noisy!!!! but after driving for 20 miles it goes back to quite mode!! Loving it! IT WOULD LOCK AND UNLOCK once in a while when backing up and turning, but you can feel it in the steering wheel, it makes a loud pop noise, but if you were the one installing it you won't freak out, you would be able to tell "bad breaking noyses" from the locker loading and unloading lol 11/21/2019 Took it to rattlesnake trail (moderate to difficult) in Utah. I performed great. I was able to struggle less than my buddies with larger tires and open differentials. I have put around 3k miles on it. The more I drive it the quieter it gets. Now I can only hear it sometimes when turning full-lock on parking lots. It stopped locking-unlocking on his own while driving in 2WD on parking lots and tight places. I will keep you all posted. 12/19/2019 I have driven it for 4k miles now. I went to Moab last weekend. Wheeling on slick rock was like driving on pavement sometimes. The Locker would bind and lock and unlock pretty hard. So I had to take my turns pretty easy and some times I would cost in neutral. (I have a 5 speed). I still love it, I got me over obstacles way smoother than my buddies with bigger tires. I was able to take the hard lines on trail w/o major issues. The locker has gone quieter after many miles. I can hardly hear it while turning in parking lots.

5.0 out of 5 stars
By Casey Espeseth - Reviewed in the United States on January 28, 2018
Budget locker bang for your buck
If you decide to go this route it’s a budget locker it works well install is about 3-4 hrs taking your time . Driving with it takes some getting use to but others may have different affects It will magnify any loose steering you have also check all ujoints on axle shafts And make sure to take up to freeway speeds drive to insure you did correctly Also make sure to change your diff fluid after couple hundred miles you’ll see so brass shaving in oil so don’t freak out Take corners easy don’t go full lock steer other than that it is pretty dang good First week was very nosiy after that the locker quited down and I barley here it ratcheting

5.0 out of 5 stars
By hi - Reviewed in the United States on June 30, 2017
Locked and ready
USA standard gear's Spartan locker is the first locker I've ever driven and this was the first time I ever took an axle apart. Took me a couple hours to get everything disassembled but what a simple install. No more spider gears crawling through my diff, now I can show off on the trail and stall more, lockers take some getting used to but they're an incredible off-road upgrade especially for the price. I'm driving a 95 Jeep Wrangler lifted 4" with 33s converted to a tj style front axle shaft and I don't notice my spartan locker at all while driving in 2wd unless I move the wheel left to right while stationary. It's a locker, and so far it works great.

5.0 out of 5 stars
By Jody Kemper - Reviewed in the United States on November 17, 2014
I am unstoppable. Until I break an axle shaft.
Bought a front for my D30 and rear for my 8.25 and am very satisfied with them. On road is not bad and I don't mind the tick in reverse and gunshot when the front unlocks sometimes, I wheel my jeep, I didn't buy these for other's opinions. On the rocks they are flawless. I'm sure I'll break axle shafts soon but for now, I am unstoppable. These are very easy to install and all parts and instructions were provided. Spartan lockers are great.

5.0 out of 5 stars
By Robert Anderson - Reviewed in the United States on May 24, 2018
Good but instructions are crap
Like everyone says, the instructions are garbage. This is how it stacks up: (Drivers side) outer spider gear, c-clip for axle, bushing, inner spider gear. Then Passenger side, same as drivers but leave out the c clip. After you get the spider gears and bushing in, insert the center pin. Then rotate the locker until you see the cutout between the spider gears. Insert the passenger c-clip here. Will take some doing because the axle has to be worked in and out until the spline cutout for the clip lines up with the opening. Make sure there is loctite on your center pin bolt. **This writeup is for information purposes only. I do not accept any responsibility for what you do with this part or how it is installed in your vehicle**

4.0 out of 5 stars
By Jeffrey - Reviewed in the United States on June 6, 2017
Wheeling Time.
I installed this in my 2014 Jeep Unlimited Sport. Off-roading is night and day difference. You get all the power you need to the front axle when you need it now. Very easy to install, I would say about two hours. You will hear the locker clicking when you are making a sharp turn, but that is normal. UPDATE: I must say these are good lockers, I just don't like when they decide on their own to lock in place on a slight turn and make a loud bang when they unlock. It almost felt like my axle was snapping. I've since removed them to check for any damages and nothing was wrong with the locker and decided to put the gears back in.

4.0 out of 5 stars
By Nick R. - Reviewed in the United States on February 5, 2016
In my opinion lunchbox lockers are one of the best "bang for the buck" modifications you can do to ...
In my opinion lunchbox lockers are one of the best "bang for the buck" modifications you can do to a vehicle intended for off road use. I don't see this breaking anytime soon, especially in a dana 30 I'd expect to break a U-joint first, if at all if you stay with a recommended sized tire. I've installed probably half a dozen of these style lockers and overall install took about 2-3 hours. Of all the brands I've installed the spartan locker is my favorite, despite being occasionally noisy when turning.