Brand: Tilton Engineering
This 5 1/2" clutch disc fits our Tilton OT-III 5 1/2" Single Disc Clutch (Part No. 173-60). The 7/8" x 20 spline pattern is common in FF1600, Formula Atlantic/F3, F3000, and Indy Lights.
Tilton's minimum recommended clutch disc thickness is 0.074" in single-disc clutches. New clutch discs measure 0.104" thick.