Manley NexTek Triple Valve Spring - 746 lb/in Spring Rate - 1.160 in Coil Bind - 1.677 in OD - Set of 16 4704021-10 2002-2006 Chevrolet Silverado 3500

2002-2006 Chevrolet Silverado 3500

Transmission Crossmember Mount Extension

Open Design Allowing Clean and Cool Running

Swivel head positions the 2-3/4" diameter gauge for easy viewing

Manley NexTek Triple Valve Spring - 746 lb/in Spring Rate - 1.160 in Coil Bind - 1.677 in OD - Set of 16 4704021-10 2002-2006 Chevrolet Silverado 3500Product Description: Valve Spring NexTek Triple Spring 746 lb in Spring Rate 1. 160 in Coil Bind 1. 677 in OD Set of 16 Manley Performance high performance and racing engine parts have been powering winners since 1966. Since our inception in March 1966, Manley Performance Products has been at the forefront of the high performance automotive industry. Founded by gearhead Hank Manley shortly after his graduation from Brown University, our journey began