There is another point of importance to everyone who decides to install polyurethane bushings on his vehicle. OOO Polyurethan produces bushings for installation on vehicles already in service that have developed clearance between the bushing in the control arm. This means the sizes of our bushings have been adjusted to eliminate possible gaps and thus prevent unwanted squeaks. Of course, discussions on forums do not usually name the manufacturer whose products caused squeaking after installation. Another reason it is difficult to determine the reason for squeaks is that the qualification of the mechanic or the owner who replaces bushings on his own vehicle is questionable.
It makes no sense to change your vehicle's suspension if it is working properly and dependably under the conditions in which you operate your vehicle. If you know what to expect from switching to "polyurethane," cost is not an issue. The price of polyurethane parts is fair for that type of product. Moreover, in our opinion the costs incurred with the switch to polyurethane silent blocks and bushings will be recuperated within a year. And some vehicle owners have found that replacing their rubber silent blocks with polyurethane simply eliminates the need to tune their suspension every three months.