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Drivetrain› Differentials and Rear-End Components

DETROIT LOCKER-TRACTECH

Detroit Truetrac - 04-06 Pontiac GTO 28-Spline

$885.86 $814.99 Save $70.87

SKU: D03L 912A642

In Stock
In Stock
Ships by Jun 18
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Non-Returnable Item
INSTALL DIFFICULTY
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Description

The DETROIT LOCKER-TRACTECH 912A642 is a Detroit Truetrac Differential Carrier designed for specific Pontiac GTO models. It features a 28-spline axle and is compatible with the GM 7.75 Independent Rear Suspension (IRS).

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDETROIT LOCKER-TRACTECH
Part NumberD03L 912A642

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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