Winters 31 Spline Alumimum Spool - 2.031" Bearing Diameter - 5.75 lbs. R07C04L 045 in Thick

045 in Thick

Improves Cranking On Engines w/Locked Out Timing

For High-Performance Street Drag Race Oval Track

Lower center design adds engine oil pan clearance

Winters 31 Spline Alumimum Spool - 2.031" Bearing Diameter - 5.75 lbs. R07C04L 045 in ThickGenuine Winters Replacement Parts for Sprint Center Quick Change Rear Ends (Diagram #4). For more than 60 years, Winters Performance Products has been producing high performance rear ends and driveline components for racing and street use. Their product offering includes everything from quick change gear sets to shifter assemblies, as well as many components specifically for the sprint car market. Winters Performance is undeniably the most reliable,