Drivetrain Differentials and Rear-End Components

Hurst

63-69 5 LUG CONV KIT W/POSI UNIT 3.73 UP

$1,573.84

SKU: H00K 02-123

In Stock
In Stock
Ships by Jun 9
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Complete axle conversion kit for 8.875" GM Truck 12 Bolt Axles with 3.73 & Up Gear Ratio. Converts early GM trucks from 6-lug to a 5x5 inch lug pattern, expanding wheel and brake options. Includes axles, limited-slip differential, and drum brake assemblies. Axles are made from heat-treated 1541H alloy for strength, feature 30 spline ends, and are 30-3/4 inches long for direct replacement.

Fitment

Fitment Guaranteed

Don’t gamble
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

BrandHurst
Part NumberH00K 02-123

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.

View Full Return Policy