BK108 - GM Chevy SM420 Transmission Rebuild Kit Rockcrawler
GM Chevy SM420 Transmission Rebuild Kit Rockcrawler
Earn Up to 179 Transparts Reward Points.
This is a transmission rebuild kit for a GM/Chevy Truck with a 4 speed SM420 Transmission
Identify this Transmission by 1 PTO opening! This transmission has an iron case that is 10.5" overall length with a cast iron top cover!
This Transmission usually comes in the 48-67 GM 1/2, 3/4 Ton or 1 Ton.
This kit includes all new bearings, seals, and gaskets!
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