1978 Chevrolet G20 equipped with 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 4.8L L6 Gas OHV
1
Rear
FSGR with Open Differential with 2.73 or Higher Rear Axle Ratio with 28 Spline Teeth with 30 Spline Teeth with Empty Case with GM 8.5 Axle
1978 Chevrolet G20 equipped with 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 4.8L L6 Gas OHV
Rear
FSGR with Open Differential with 2.73 or Higher Rear Axle Ratio with 28 Spline Teeth with 30 Spline Teeth with Empty Case with GM 8.5 Axle