I inspected the body mounts on my truck. They bolts came all out only one cracked. In the left front under the cab. So I had to drill the cracked rest of the bolt out from the upper side.My car has a 4” body lift kit installed so that the bolts are longer than standart bolts ( 180mm ca 7,5 ”)The rubbers are in a bad condition the metal is rusty so I just put some Mike Sanders grease to receive the current Status und to keep the thread common.But I want to install new body mounts.The Problem, I don´t find rubber ones I only find Polyurethane ones and think these are stiffer, so vibrations are transmitted more. Does anyone have experience in this regard?