Rear Suspension - 1967-1969 F-Body - Rear Upper Shock Crossmember Our rear upper shock crossmember is used when relocating the upper shock mounts inside of the frame rails, which is typical when widening the rear wheel tubs. The crossmember is located between the rear wheel tubs. It should be mounted through the trunk floorpan to provide additional shock travel when ride height is lower than stock. This C-section crossmember is made from 1/8" steel. It adds additional structural integrity to the rear subframe and provides the necessary mounting for inboard upper shock mounts. It can be used on either staggered or non-staggered shock mounting. This rear upper shock crossmember is used with the Mini-Tub Kit. This is different from the crossmember used in the QUADRA Link kit. Tech Tip: The 1967 F-Body uses a non-staggered rear shock mounting. Non-staggered shocks are mounted on the same (front) side of the rear axle. 1968-1969 F-Body uses staggered rear shock mounting. Staggered shocks are mounted on opposite sides of the rear axle.Pit Stop USA offers Detroit Speed Engineering Rear Upper Shock Crossmember-1967-1969 F-Body 40601 at low everyda prices. Be sure to check out all of our products from Detroit Speed Engineering including Detroit Speed Engineering Shock Mount Brackets.