COMP Cams 1.640" O.D. Spring Shim Kit H762001XXL Smoke Tint helps to eliminate

Smoke Tint helps to eliminate glare during daytime driving

Weatherproof connector

This tool is a must when adjusting tension of quick turn springs

Triple Layer

2015-2018 GMC Sierra 3500 HD

COMP Cams 1.640" O.D. Spring Shim Kit H762001XXL Smoke Tint helps to eliminateThis shim kit contains . 015", . 030" and . 060" thick Valve Spring Shims with 1. 640" outside diameter and . 635" . 650" inside diameter are used to equalize the installed height of valve springs. Made from the highest quality shim stock, these shims are heat treated to stand up to radical cam lobes. Kits are also available. This COMP shim kit includes a number of 1. 640" diameter shims of various thickness. This kit includes 16 . 015" thick shims,