Allstar Performance spool, quick change, 31 spline, aluminum, Winters DMI, for race car drivetrains. Ensures equal power distribution in racing setups. Bolt-on installation for track use.
Spool, 31 Spline, Aluminum, DMI / Winters Quick Change, Each. Spools are substantially lighter than conventional cast iron carriers, and lock booth rear axles together to deliver equal power to both rear wheels. Ultra-lite steel spools have more lightening holes and a narrower ring gear flange than standard units to help reduce rotating weight.