I have a 54 chevy(car). I lowered it 3 in. the back was lowered with 3in. lowering blocks. My shocks make a bangin sound on really bumpy roads. I want to put lower shocks on. what size do I get? what size are the stock ones? Do I just get 3in. shorter shocks than stock? Thanks for your help.
Make sure it's really the shocks. I had a similar problem, got under there and looked around, found it was actually the rear hitting the exhaust pipe. Really loud bang, everytime I hit even a small bump. Ten minutes with a 2-lb. hammer, and much quieter now.
The shocks mount below the spring. They don't know the 3" block is in there. You are bottoming out on something, the exhaust can smash the brake line, the rearend will hit the trunk, and in extreme cases the torque tube will hit under the seat. You need to get under there and have a look.
53 is right. Usually at 3 inches things start hitting. The pumpkin is most likely the first thing to hit. At least it was on mine.
Preplan your lowering jobs, and you won't have so much noise. It's called engineering - same thing GM did when they built your car, so you have to accomodate their engineering into what you want to do. The closer you place suspension members and the items they support to your frame and body/floor pan, the more likely it is that normal road anomalies will be exaggerated and the lack of sufficient clearance will make itself known in exactly the same manner you are experiencing. dj
The Jalopy Journal
