How do you test the damper shock to see if it is responsible for shaking. Do all 4 need to be replaced at the same time?
Answer Hi William.The only way to test is to look and see if there is oil or grease leaking on the shaft, out from the shock cartridge itself. It can also w/ no resistence collasp itself. Part # 34001292. And yes they are normally all replaced at the same time because of the same age and possibility of near failure point. Thank You.
Vibration on spin.
Answer Hello. Inspect the shocks and tub support springs and make sure they are not broken or worn. Hope this helps.