Transmission Sprag - Intermediate - Steel - TH400 - Each

Rear Case Thrust Bearing - 0.010 / 0.015 / 0.020 in Washers Included - Roller - Steel - TH400 - Kit

Transmission Rebuild Kit - Automatic - Pro Super - Clutches / Bands / Filter / Gaskets / Seals - Modulator - Valve Body - TH400 - Kit

Upgrade your transmission with the high-performance TH400 S/C Tailhousing w/ Roller Bearing by ATI PERFORMANCE. This premium aluminum housing is designed to enhance durability and performance for your TH400 transmission, ensuring smoother operation and...

Enhance your vehicle's performance with the TH400 Shift Improver Kit from B and M AUTOMOTIVE. Designed for TH400/TH375/M40 models from 1965-87, this kit transforms your automatic transmission to deliver smoother, more precise shifts. Experience improved...

Transmission - Automatic - Streetfighter - Automatic / Manual Valve Body - 4 in Tailshaft - TH400 - Each