Heavy Duty Band Adjusting Screw w/ Nut

H.D.BAND ADJUSTING SCREW W/NUT

The Coan Racing COA‑12840 Heavy‑Duty Band Adjusting Screw with Nut is a reinforced adjustment assembly specifically designed for GM Powerglide transmissions. The screw and accompanying nut provide precise, tamper-resistant band tension adjustments that maintain consistent pressure even under extreme operating conditions.

Featuring a robust design tailored to withstand heavy load cycles and vibration, the COA‑12840 ensures reliable band alignment and helps prevent slippage or maladjustment over time. It installs directly into standard Powerglide assemblies, offering a superior, long-lasting solution for both performance rebuilds and heavy-duty transmission builds.