Fluid · Rear Differential
Rear Differential
for 1988-2000 GMC C2500 5.7L V8 · 4WD
Fluid Type
80W-90 GL-5 or 75W-90 synthetic
Spec: API GL-5
Capacity
4.2qt
3.97 L
Drain & Refill
4.2 qt
3.97 L
Change Interval
50,000 mi
80,450 km
Notes
GM 14-bolt 9.5" or 10.5" typical. Add limited slip additive if equipped
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other fluid systems on this vehicle
A/C Refrigerant
A/C Refrigerant
Brake Fluid
1 qt
Brake Fluid
1 qt
Coolant
24 qt
Coolant
24 qt
Engine Oil
5 qt
Engine Oil
5 qt
Front Differential
3.5 qt
Power Steering
2 qt
Power Steering
2 qt
Transfer Case
2.2 qt
Automatic Transmission
12 qt
Automatic Transmission
12 qt
Manual Transmission
4.2 qt
Manual Transmission
4.2 qt
Washer Fluid
4 qt
Washer Fluid
4 qt