Alto 200-4R Master Kit with Steels

Complete Alto master kit with steels for the GM 200-4R four-speed overdrive automatic transmission. This comprehensive kit includes all gaskets, seals, clutch plates, steels, and friction materials needed for a professional rebuild of the 200-4R. This transmission is the factory overdrive replacement for the TH350 and is found in highly sought-after vehicles like the Buick Grand National and GNX.

Covers all 200-4R applications from 1981 to 1990 including Buick Grand National, Regal, GNX, 1982-1984 Corvette, and Monte Carlo SS. Premium materials ensure reliability even in the turbocharged Grand National application where the 200-4R must handle significant torque output.