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Yukon Gear & Axle Dura Grip Limited Slip Differential Positraction, 31 Spline, Compatible with 8.8" Ford Axle, YDGF8.8-31-1

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Availability: Only 2 left in stock, order soon!
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Arrives Wednesday, Jul 8
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Style: Ford 8.8" with 31 Spline Axle


Pattern Name: Differential


Features

  • Precise Purpose: Designed to provide smooth yet aggressive traction, enhancing truck or car handling and stability in demanding conditions with composite clutches, giving optimal torque distribution
  • Perfect Fit: This diff fits 8.8" Ford axles with 31 splines and all gear ratios, with gears cut to provide the strongest teeth possible in any terrain - an unmatched auto standard
  • Rebuildable Design: The Dura Grip differential is fully rebuildable, allowing for easy repair, assembly, replacement, upgrades, and extended lifespan. Our diff 's are proudly assembled in the USA!
  • Quality and Craftsmanship: Our Dura Grip differentials are constructed with high-quality materials, with forged 4320 chromoly spider gears, ensuring durability and reliability in performance
  • Trusted Brand: Our products are known for their commitment to quality, advanced engineering techniques, and rigorous diagnostic testing - you can trust performance parts from Yukon Gear & Axle

Description

The YDGF8.8-31-1 Yukon Dura Grip is the ultimate choice for those seeking smooth yet aggressive traction in a limited slip differential. Engineered for long life and completely rebuildable, this differential is designed to provide the confidence and performance you need across a wide variety of terrains. Constructed with a high strength nodular case, forged 4320 chromoly spider gears, and composite clutches, the Dura Grip offers unmatched positraction performance for vehicles demanding durability and strength. When it comes to purchasing automotive parts, it's important to understand the differences between authentic products like the Yukon Dura Grip and knockoff counterparts. Knockoff differentials may seem like a bargain, but they often lack the quality, durability, and performance standards of genuine products. Investing in an authentic Yukon Dura Grip ensures superior quality materials, precision engineering, and state-of-the-art technologies that undergo rigorous testing to meet stringent quality standards. The performance and reliability of a differential are crucial factors to consider when making a purchase. The Yukon Dura Grip is designed to deliver optimal traction, enhance handling, and maximize torque distribution for improved vehicle control and stability in demanding conditions. Knockoff differentials may fail to deliver the same level of performance, potentially leading to reduced traction, excessive wear and tear, and even complete failure of the differential system. Choosing an authentic Yukon Dura Grip also comes with the added benefit of warranty and support from the manufacturer. Genuine products are backed by a warranty that protects buyers from manufacturing defects and ensures prompt resolution of any issues. Knockoff differentials often lack this support, leaving buyers vulnerable to costly repairs or replacements. Safety is always a top priority when it comes to vehicle components. Authentic Yukon Dura Grip differentials are built to meet stringent safety regulations and undergo thorough testing to ensure optimal performance under various driving conditions. Choosing an authentic product ensures the safety of both the driver and passengers, providing peace of mind and longevity for your vehicle's differential system. In conclusion, investing in an authentic Yukon Dura Grip differential offers superior quality, durability, performance, warranty, and safety benefits that far outweigh the initial cost savings of knockoff alternatives. Don't compromise your safety and driving experience - choose authenticity over imitation. The Yukon Dura Grip is proudly assembled and quality tested in the USA, ensuring top-notch quality and reliability for unmatched positraction performance.

Manufacturer: ‎Yukon Gear & Axle


Brand: ‎Yukon Gear & Axle


Model: ‎DuraGrip Limited Slip Differential Positraction Ford 8.8" w/31 Spline


Item Weight: ‎12 pounds


Item model number: ‎YDGF8.8-31-1


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Machined


Manufacturer Part Number: ‎YDGF8.8-31-1


OEM Part Number: ‎YDGF931AG


Date First Available: February 13, 2012


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Quality posi unit.
Style: GM 8.5"/8.6"with 30 Spline Pattern Name: Differential
Well built. Works great. Installed in my truck for towing and in-the-woods hauling capabilities, replacing a stock open carrier. No issues, and I have put about 200 miles on it since the install (don't drive that truck much). No abnormal noises.
Reviewed in the United States on June 2, 2026 by Carole B.

  • Better than factory well made
Style: GM 8.5"/8.6"with 30 Spline Pattern Name: Differential
I use this unit on a 1968 Camaro 12 bolt rear end. It came complete well-made machine surfaces everything fit as designed. I used the factory Yukon additive. I have 6000 miles under the rear end with a 327 manual transmission and both tires spin when power applied no slippage. Going forward I would not look for a used GM unit and just use a Yukon much simpler. It is well built and works well. I did buy the wrong unit because they have three models for different gearing and it was an easy exchange. Great customer service. ... show more
Reviewed in the United States on February 21, 2026 by Contractor Tom

  • Good Quality part for the money.
Style: Chrysler 9.25" with 31 Spline 2010 & Down Pattern Name: Differential
Replaced the open differential unit in my 99 Dodge Durango with this limited slip unit and it is an awesome upgrade! On the 9.25 Dodge differential replacement is simple I suggest using only "Timkin" bearings, good quality gear oil and limited slip additive. I used Lucas 85W 140 gear oil and their additive. The differential is working perfectly. While you have things apart it is a good time to inspect/replace the outer axle bearings and axle seals which are very easy to replace at that time as well. ... show more
Reviewed in the United States on August 16, 2025 by Max

  • It's a legit yukon product
Style: GM 8.5"/8.6"with 30 Spline Pattern Name: Differential
Originally purchased one of the from a company in Wa state for double the price, this is a wholesaler which cuts the price drastically. Exact same packaging, product (stamped from manufacturer w/ serial numbers and everything), excellent customer service too. If you need a new locker for your gm 10 bolt this is the best option to replace the stock g80 (gov-lock/ gov-bomb). Ran my first one for 150k miles, didn't know fluid replacement was crucial to clutch longevity. I'll be changing this diff gear oil every 30k. True Yukon gear part, exact replacement for almost all gm 10 bolt rearends. Don't believe the -2 at the end of the part #, it's a ydggm8.5-3-30-1 made in the USA. This was less than half price from the local company that produces them, that company wanted to rip me off, this company sold me my parts at a reasonable price. I'll be recommending them to everone. Thank you very much. ... show more
Reviewed in the United States on March 22, 2025 by sanman

  • Got both tires spinnin! Got both tires spinnin!
Style: GM 12 Bolt Truck Differential - 30 Spline Pattern Name: Differential
Installed in my 1963 c10. Factory 10 bolt rear. I’ve use Yukon products for years and they are very strong. Install was smooth and came with good direction/instruction. Also very clear of what oil to run with it. When installing your axles, it is very tight getting c-clips inside the carrier. It’s suppose to be. Take your time and have a helper push the wheel end of the axle toward the carrier if needed. ... show more
Reviewed in the United States on May 9, 2026 Reviewed in the United States on May 9, 2026 by Kasey Hicks

  • Works as expected
Style: GM 8.5"/8.6"with 30 Spline Pattern Name: Differential
Works very well, clutches are tight!!! though. Occasionally hops around turns.
Reviewed in the United States on January 26, 2026 by D. W 5678

  • AMAZING PRODUCT AND CUSTOMER SERVICE FROM THE COMPANY!
Style: GM 8.5"/8.6"with 30 Spline Pattern Name: Differential
This is the second rear end we have had to replace in my 05 sierra with 400k miles, so far we have had no problems with it.. the company's customer service team was absolutely outstanding when i had trouble with my purchase of their $40 lifetime guarantee for this part. My card was saying I had been charged twice, but the gentleman made sure I wasn't and even shipped the card for the warranty next day for 100% free! then called me again to tell me he had the tech people check just to be sure. I cannot say enough good things about this company and the people working there! definitely would buy again if i didn't have the warranty for it! ... show more
Reviewed in the United States on November 17, 2025 by Cas

  • Great
Style: Chrysler 9.25" with 31 Spline 2010 & Down Pattern Name: Differential
Good price, free shipping and it's a yukon so I know it's strong.
Reviewed in the United States on May 29, 2026 by Dick Johnson

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