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Detroit Locker

912A317 Trutrac Differential with 28 Spline for GM 7.625", 10 Bolt Rear End

  • Based on 12 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by Quick Performance Racing
Arrives Thursday, Mar 12
Order within 5 hours and 21 minutes
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Features

  • Product Type:Auto Part
  • Item Package Weight:21.099 Pounds
  • Item Package Dimension:23.368 cm L X26.416 cm W X23.622 cm H
  • Country Of Origin: United States

Description

Detroit Truetrac Differential GM 10-Bolt1988-2005 GM Car1988-2009 GM Truck 28-Spline Axles 7.5''/7.6'' Diameter Ring Gear Fits 3.23 & Up Gear Ratios

Manufacturer: ‎Detroit Locker


Brand: ‎Detroit Locker


Item Weight: ‎20.8 pounds


Item model number: ‎912A317


Manufacturer Part Number: ‎912A317


OEM Part Number: ‎912A317


Date First Available: July 27, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 12

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

    • Well worth the money
Since this was my first time setting up a differential it took longer than a normal install would have been. That said the install went really well. There has been some people say that they had noise, but I found none. I used 80-90 non synthetic gear oil as directed and have found the differential works like a champ. It's only been a few hundred miles but it's working better than the old stock one of 230k miles. ... show more
Reviewed in the United States on July 27, 2025 by StingrayVet
    • Greatly improved GMC Sonoma 2.2L RWD Pickup
I installed this differential to help my RWD truck handle Buffalo's snowy roads a bit better. I've only just installed it so I will have to update this review once we've had some snow, but already my driving experience is dramatically different. With the stock open differential, the back end of my truck would 'skip' and lose traction while pulling out into traffic or accelerating around a corner–especially uphill. Now it maintains traction throughout the turn, and you can hear the differential doing its work as one tire begins to slip, and then is caught. It makes a repetitive 'chirping' sound instead of the usual, continuous squeal of tires. The same goes for accelerating from a dead stop in a straight line. Again, I will update once I've tested it in the snow. I have very high hopes. FYI, you need a pair of clamping calipers and some snap ring pliers to install this, in addition to the usual automotive tools. ... show more
Reviewed in the United States on November 12, 2014 by James Gawley
    • Amazon flagged my prior review of a noisy diff
Noisy differential. Quiets over time but still crazy noisy when new. Did the swap myself and the backlash and preload were within spec. Noise prompted me to have a shop check my work. They said the backlash and preload were fine but I had the redo anyway. Still noisy but quieted after a couple thousand miles. ... show more
Reviewed in the United States on February 15, 2025 by RCM
    • hooks great with drag radials and also does easy burnouts
The media could not be loaded. Took a while to install but wow what a major improvement over my stock open dif. I have a 1991 Camaro RS with a 400 small block pushing 260hp, 410lbs torque, with 3.73 gears on the Locker, and this thing takes that torque with ease, hooks great with drag radials and also does easy burnouts. Corners super good too and never makes an loud noise that other lockers make. 10/10 would defiantly recommend this Locker! ... show more
Reviewed in the United States on June 28, 2017 by Amazon Customer
    • Better than stock.
Way better than the stock open dif. Looks to be much stronger, but I haven't really pressed it yet. Tight turns are no problem. Only (minor Issue is that there is more slack in the worm gears than in the stock spider gears. This makes a slightly larger clunk sound when you reverse direction with an automatic trans. ... show more
Reviewed in the United States on August 18, 2012 by Jeff

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