For 1969-1974 GMC P25/P2500 Van Auto Trans Shift Kit B&M 11581YB 1970 1971 1972

Notes: Shift Improver Kit Automatic Transmission Shift Kit -- Incl. Gaskets/Seals/Drill Bit/Fluid Separators. Trans Year: 1969. Trans Year: 1974. Trans Model: GM- TH350 (Auto) 3 Speed. Trans Model: GM- TH375 (Auto) 3 Speed.