Eaton Detroit Truetrac Diff 30 Spline 1.30in Axle Shaft Dia 3.73 & Up Ratio GM Half Ton Truck

All Eaton differentials made for General Motors 8.5" and 8.6" axles require special bearings. For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999 to present, bearing LM603049 and race LM603012 are required.

3.73 & up

30 EA

1.3 in

8.875 in

Limited Slip (LSD)

Off-Road: Light Trail / Sand Sports
On Road: Restoration
On Road: Street and Muscle
On Road: Work Truck / Towing
On Road: Circle Track
On Road: Drag Racing
Off-Road: Extreme Off-Road
Off-Road: Rock Crawl
Off-Road: Work Truck / Towing