Muncie SM420 4-Speed Repair Parts & Rebuild Kits
Allstate Gear carries replacement drivetrain parts for vehicles new and old, including 1948 to 1967 Chevy SM420 transmission parts. These vintage 4-speed transmission repair parts fit most four-speed transmissions used in 1948 to 1967 Chevy ½-ton and ¾-ton pickups. The Muncie transmission bearing kit has everything you need to replace the bearings, including clips, washers and seals.
Not quite sure if an SM420 transmission rebuild kit will fit your application? Our Muncie SM420 rebuild kit works with transmissions that have a 10 ½ inch case, a PTO cover and a cast-iron shift top. If your vintage Chevy transmission has these features, it’s an SM420.
Made to Fit GM & Chevy Pickup Years: