Drivetrain› Differentials and Rear-End Components

DETROIT LOCKER-TRACTECH

Service Kits (POSI) Preload Kit

$112.49

SKU: D03L 29590-00S

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Detroit Locker-TracTech 29590-00S is a Posi Preload Kit designed for differentials with 8.2, 8.5, and 8.875-inch axle diameters. This kit includes springs and plates to ensure proper preload.

Fitment

Fitment Guaranteed

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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 29590-00S

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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