My 33 will not accept the QA1s I purchased without some modifications to the upper mounts. I have been extremely unhappy with the rear shocks and springs as they were so stiff. Yesterday I added 220 LB 9 inch springs. The ride is quite improved and acceptable. I will add the QA1s when I have the time to modify the upper shock mounts. Over the past few weeks, I have replaced an automatic 4 speed with a Tremic 5 speed and now, the car is Fabulous!