Allstar Performance Bilstein 1" Shock Extension 1969992 Use a backup plate (700070)

Use a backup plate (700070) for installation through a sheet metal floor

two-way zipper installed with a double overlap for a more secure front opening

Black anodized aluminum inline thermostat housing fits GM-style thermostats

Fits 73-88 GM midsize rear control arms

This is the best small block Ford 20 inline head you'll find to provide huge horsepower to out run your competition

Allstar Performance Bilstein 1" Shock Extension 1969992 Use a backup plate (700070)Steel extensions fasten directly to shock shaft for added suspension travel. Sold each. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items available from Allstar Performance. Product Description: Shock Extension 1 in