Used 1989 Eaton 23421 (Stock #20-118-4)

Differentials & Differential Parts / Rear Rears (Tandem Rear or Single)
Truck Year
1989
Differential Make (Rear)
Eaton
Differential Model (Rear)
23421
Truck Make
GMC

Eaton 23,000 lb rear in a 5.43 ratio, this is a full locking rear.