3977383

Fits the following :

Chevrolet C20 1984-1987

Chevrolet C25 1984-1987

Chevrolet K20 1984-1987

Chevrolet K25 1984-1987

Chevrolet C2500 1984-1987

Chevrolet C3500 1984-1987

Chevrolet K2500 1984-1987

Chevrolet K3500 1984-1987

Chevrolet R2500 1987-1991

Chevrolet R3500 1987-1991

Chevrolet V2500 1987-1991

Chevrolet V3500 1987-1991

Rear axle shaft

Left Side

31 11/16″ O.L.

8 bolt

30 spline

Full floating axle

GM 10.5″ Rear Differential

Note: Pinion is removed through the front, has a 6 bolt pinion support