★ ENGINEERED FOR SPEED, BUILT FOR PERFORMANCE® ★
Cunningham Customs LLC logoCunningham Customs LLC®Engineered for Speed, Built for Performance®
GuidesToolsAndroidGet App
☎ +1 (406) 402-7084

Billings crew on the radio for build questions.

Primary Image (MotorState Sync)
B and M AUTOMOTIVE

Th400 Shift Improver Kit

SKU: BMM20260
$88.99
Automatic Transmission Shift Kit - Shift Improver - TH400 / TH375 / M40 1965-87 - Kit

Comments & builder notes

Share fitment tips, install notes, or questions. Customers, the shop, and Grok can all chime in. New comments notify the Cunningham Customs team for review.

Prefer saved profile? Log in or create an account.

Call Us+1 (406) 402-7084