QA1 Rear Pro Coilover Kit - Double Adjustable, 150 lbs/in Rate - 1969-1972 Pontiac Grand Prix upper-control-arms AST Suspension designed the Competition

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QA1 Rear Pro Coilover Kit - Double Adjustable, 150 lbs/in Rate - 1969-1972 Pontiac Grand Prix upper-control-arms AST Suspension designed the CompetitionQA1 offers bolt in Rear Coil Over Conversion Kits for the 1969 1972 Pontiac Grand Prix vehicles. These kits include specially designed USA made mounting brackets and single or double adjustable Aluminum Shocks, High Travel Springs and all necessary hardware. Single Adjustable Shocks provide 18 positions of simultaneous rebound and compression adjustment while QA1's double Adjustable Shocks provide 18 positions of compression adjustment and 18