DEI Vapor Block Sleeve - 1" ID - 3 ft - Silver 91629089 The stock upper control arm

The stock upper control arm mount can deflect under load and absorb power instead of transferring it to the tires

This shim kit contains

1986-1987 Pontiac Grand Prix

2007 GMC Sierra 2500 HD Classic 78

DEI Vapor Block Sleeve - 1" ID - 3 ft - Silver 91629089 The stock upper control armVapor Block Fuel Line Sleeve Vapor Block solves the problem of fuel and other fluids boiling from extreme heat and causing a vapor lock situation. Prevent rough idling and difficult starting caused by vapor lock with DEI Vapor Block. Vapor Block fuel line sleeve was specifically developed to prevent vapor lock in fuel systems by greatly reducing heat in the line to keep fuel cooler and below boiling. Vapor Block installs easily with a split design and