Differentials & Drive Axles: Lubrication

Fill differential with 80W-90 GL-5 Gear Lubricant (on Camaro and Firebird use, GM P/N 12345977 ; others use GM P/N 1052271 ). See LUBRICATION CAPACITIES table. Add 4 ounces (.12L) of limited slip additive (GM P/N 1052358 ).

LUBRICATION CAPACITIES ⁽¹⁾

Application

Pts. (L)

7 5/8" Ring Gear

3.5 (1.7)

8 1/2" & 9 1/2" Ring Gear

4.2 (2.0)

⁽¹⁾	Fill no lower than 9/16" (15 mm) below edge of filler hole.