Rebuild Slim Jim or go 200-4R - ClassicOldsmobile.com
Dale's A-1 Transmission - ⚠️HISTORY LESSON⚠️• The Roto Hydramatic was an automatic transmission built by General Motors and used on some Oldsmobile, Pontiac and Holden models from 1961–1965. This particular unit is
Slim Jim Roto 10 Automatic Transmission Rebuilding Kit | eBay