Differential, Final Drive
Standard, Toronado 80W, 80W-90* GL-5(Gear Oil, API Service GL-5)Limited-Slip 80W, 80W-90* GL-5*(Special Lubricant for Limited-Slip Differential)
*For vehicles normally operated in Canada, 80W only
CAPACITY, Refill:
Cutlass 1.7 liters 3.5 pints
Toronado 1.5 liters 3.3 pints
88, 98:
7-1/2" ring gear 1.7 liters 3.5 pints
8-1/2" 8-3/4" ring gear .0 liters 4.3 pints
LIMITED-SLIP IDENTIFICATION:
Tag under rear cover-attaching bolt