BK117HDWS - GM Chevy Buick Oldsmobile Pontiac Muncie M20 1963-1965 and M21 M22 1966-1974 Heavy Duty Bearing and Synchro Transmission Rebuild Kit uses 7/8 Inch Counter Shaft Pin and 80mm OD Input Bearing

Rebuild Kit

Heavy Duty Bearings

Synchros

Uses 7/8" Counter Shaft Pin & 80mm OD input Bearing

Muncie M20

1963-1965

&

Muncie M21 M22

1966-1974

GM Chevy Buick Oldsmobile Pontiac

This transmission kit is one that fits all the M20 1963-1965 and M21 M22 1966-74 GM Muncie Manual Transmissions.

You can identify this transmission by the cast aluminum case and 7 bolt side cover.

It uses the 7/8" countershaft pin and an 80mm outside diameter input bearing.

Kit Includes:

Gasket Set

Rear Seal

Large Rear Seal

Shifter Seals

Small Parts Kit

Heavy Duty Front Bearing

Heavy Duty Rear Bearing

Synchros