System Specifications

REAR AXLE FLUID

WITH AUTOMATIC TRANSMISSION
Rear Differential Fluid 75W-90 (GM Part No. U.S. 89021677, in Canada 89021678).

WITH MANUAL TRANSMISSION
Rear Differential Fluid 75W-90 Limited Slip (GM Part No. U.S. 89021677 and Friction Modifier 1052358, in Canada 89021678 and Friction Modifier 992694).