Unrivaled Customer Service
And Expert Tech Advice!  
Same Day Shipping Before 11 PM ET
My Cart
Shop By Vehicle
Shop By
Close Menu
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories

Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates

Detroit TrueTrac 912A317

Detroit Truetrac Differential GM 10-Bolt

Detroit TrueTrac 912A317
Representative Image
Product images may differ from actual product appearance.


made in usa
jegs shipping
FREE Shipping
Estimated to ship directly from the manufacturer on 06/08/18
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
Detroit TrueTrac 912A317 Detroit Truetrac Differential GM 10-Bolt $434.99
Detroit Truetrac Differential
  • GM 10-Bolt
  • 1988-2005 GM Car
  • 1988-2009 GM Truck
  • 28-Spline Axles
  • 7.5''/7.6'' Diameter Ring Gear
  • Fits 3.23 & Up Gear Ratios

  • Specifications:

    Manufacturer's Part Number:

    The Detroit Truetrac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics.

    The Truetrac operates as a standard or open differential under normal driving conditions, allowing one wheel to spin faster or slower as necessary. When a wheel encounters a loss of traction or the terrain changes, the gear separation forces take effect and transfer torque to the high-traction wheel. The helical-shaped gears mesh with increasing force until wheel spin is slowed or completely stopped. When the vehicle exits the low traction situation, the differential resumes normal operation.

    Operation of the Truetrac is smooth, quiet and automatic. The unit will engage without any driver knowledge or action required. It also has no wearable parts and requires no maintenance, meaning less time in the garage and more on the road.

  • Helical-style pinion gears
  • Limited-slip operation
  • Smooth and automatic engagement - no driver action needed
  • Parts are maintenance free meaning more time on the road
  • Validated performance and durability

  • 912A317 is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Great service!! I bought this part a month a go and I'm very satisfied with my purchase. Timely shipping and quality product.
    Date published: 2017-04-24
    • y_2018, m_5, d_23, h_19
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_1
    • loc_en_US, sid_10001_10001_3295512, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Is this compatible with 2001 GMC Jimmy 4x4 SLT for the front and/or rear diff.

    Asked by: tomslik
    This will work, please review the instruction tab to verify your fitment.
    Answered by: Rusty B
    Date published: 2018-02-09

    Will this fit in a 2006 GTO with a 7.75 IRS rear?

    Asked by: NikkiGTO
    This part is not compatible with the IRS rear.
    Answered by: Jon Jegs Tech
    Date published: 2017-11-28

    Will it work on a 2000 z28 with 3.42 gear ratio?

    Asked by: GM25
    This would be compatible.
    Answered by: Jon Jegs Tech
    Date published: 2017-10-25
    • y_2018, m_5, d_23, h_19CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_3
    • loc_en_US, sid_10001_10001_3295512, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs
    Some parts are not legal for use in California or other states with similar laws / regulations