Allstar Performance mini spool, 9in Ford, 31 spline, for race car drivetrains. Ensures equal power distribution in racing setups. Bolt-on installation for track use.
Spool, Mini, 31 Spline, Steel, Ford 9 in, Each. This unit fits a 1957-87 ford 9 inch rear end with a 3/4 inch cross pin and 31 spline axles. Cross pin (Allstar part 68121) must be ordered separately. This mini spool is precisely machined for proper fit, and then heat treated. Mini spool fits a Ford 9 inch differentials with 31 spline axles and is considered a lightweight model mini spool.