Last one 10 years ago was done by Dale's damper service.The modified GMC 302 was sold and now has about 65K miles on it.
The properties of the "rubber" in dampers is supposed to be engineered for a particular engine. Dale told me he has specs so his "rubber" is correct......But from what I know they use silicone in place of the original "rubber". It seems far more likely that all rebuilt dampers use the exact same silicone ?
