Pump To Drum Thrust Washer Shim Kit

The Coan Racing COA‑32440 Pump‑to‑Drum Washer Shim Kit is an essential precision shim set designed to fine-tune endplay between the transmission pump and drum in TH350 transmissions. This kit provides a range of shims that allow technicians to adjust clearances to OEM or performance specifications, helping to ensure the correct preload and prevent unnecessary wear or fluid leakage. By enabling meticulous control over pump-to-drum alignment, the COA‑32440 supports optimal hydraulic performance and longevity, making it an indispensable component during rebuilds or high-performance upgrades where precise internal tolerances are critical.