Vic the way to find the length of tube shocks is to jack the car up by the frame and measure the distance between the frame and axle mounts. Let the jack down and get 3 or 4 heavy guys to sit in the car and stand on the bumper and measure the distance again. the differance between the two measurements plus about 2"s is the stroke. The stroke has to be long enough or I have seen the shocks torn from the frame. I haven't had to hunt for shocks for 15 or 20 years but Napa had the extended and closed lengths listed. G.M.