New PCM 80A transmission kit replaces PCM 40A 1.23:1 ratio transmissions using GM 5.0L/5.7L/6.0L engines. This kit includes a new damper plate, 12" transmission cooler, fittings, lines, bolts, and shift cable bracket. Same dimensions as the original PCM 40A with the 9 degree down angle output coupler. The 80A fluid pump is nonreversible and will only work with a left-hand (standard) rotation engine.�RF157017-27A PCM 80A TRANSMISSION KIT REPLACES PCM 40A 1.23:1 RATIO TRANSMISSIONS USING GM 5.0L/5.7L/6.0L ENGINES.�This kit includes a new damper plate, 12" transmission cooler, fittings, lines, bolts and shift cable bracket . Same dimensions as the origninal PCM 40A with the 9 degree down angle output coupler. The 80A fluid pump is nonreversible and will only work with a left hand (standard) rotation engine. "Note: PCM 80 series transmissions are manufactured by Velvet Drive".