IMO shocks have to be matched to the car. Just because a shock is the right size and has the appropriate mounts dosen't mean it will work well. Most of the common parts store shocks cover several different models and will physically fit. I had a good example of this early on with my'Cuda. I initially put KYB's on the car [ good price ], it was all but undriveable due to a lack of compliance. Best tires in the world won't work if they're off the pavement. I sold the KYB's [ really cheap ] to a friend with a big block '67 Charger. They worked fine for him. My'Cuda weighs in at 3,500 lbs. with a 1/2 tank of gas. His Charger weighs over 4,000 lbs. 'Cuda's also tend to be lighter at the back.