MASTER OVERHAUL KIT (INCLUDES: 6 FWD, 6 DIR, 3 INT CLUTCHES, STEELS, GASKETS & RINGS-NO BANDS OR FILTER), USE W/ COA-22870

The Coan Racing COA‑22108A Master Overhaul Kit is a meticulously designed rebuild package tailored for high-performance Turbo‑Hydramatic 400 transmissions, engineered specifically to pair with Coan’s COA‑22870 drum kit. Manufactured in the USA to Coan’s exacting quality standards, this comprehensive kit includes six forward clutch packs, six direct clutch packs, and three intermediate clutch packs, along with all necessary steel plates, gaskets, and sealing rings, excluding bands and filter.

Whether restoring a race-proven setup or upgrading for bracket-class competition, the COA‑22108A simplifies transmission refurbishing by combining essential internal clutch components and sealing elements into one cohesive assortment. By delivering matched, high-capacity clutch stacks and precision-engineered seals, the kit ensures robust hydraulic function, minimizes slip under load, and enhances torque capacity when used with the COA‑22870 drum. Ideal for builders aiming for repeatable shift performance and longevity in high-stress dragging scenarios, this kit provides a solid foundation for assembling a race-ready TH400 transmission.