CLUTCH MASTER REPAIR KIT POST 85 2 RING TYPE
GRK3004- CLUTCH MASTER REPAIR KIT POST 85 2 RING TYPE
Clutch master cylinder repair kit GMC1008. Master Cylinders made after 1985 had a groove around the base, below the tank, and this takes 2 ring type seals. If you require a new piston you can use GRK3007 which is a conversion kit for the old type pre 1985 cylinders that had one seal and a cap end seal.