QA1 6Q Series Twintube Shock - 6 in Long - C4-R2 Valve - Black Zinc 20-PRY-NB-7XS All center discs are made

All center discs are made from high grade HSLA steel for strength and durability

Actual product may vary by model

select the proper material

1997-2009 GMC Savana 2500

1999-2002 Ford E-350 Super Duty

QA1 6Q Series Twintube Shock - 6 in Long - C4-R2 Valve - Black Zinc 20-PRY-NB-7XS All center discs are madeQA1 7Q Series Circle Track Rebuildable Steel Twin Tube ShocksQA1 specializes in high performance suspension components, including shock absorbers, rod ends, spherical bearings, struts, springs, ball joints and other related items. With products to fit a wide variety of applications, they have solutions for the circle track, drag racing, street performance, and street rodding markets. At QA1, we believe vehicles were meant to be driven. From bolt on