Chevy 5 speed NV4500 "MT8" Transmission Rebuild Kit 1990-1995 BK308 You can identify this transmission in a Chevy by the cast "C-16812" or "C-18157". This transmission has an iron case with an aluminum top cover! This transmission usually comes in the 1990-95 Chevy 3/4 ton or 1 ton gas and diesel trucks. This kit includes all new bearings, seals, and gaskets.