These rear spring upper isolators are designed to eliminate creaks and squeaks from the rear springs. These use the durable Purple 80 Shore A material to target reliability issues of the original part, since the softer OE specified foam quickly deteriorates, even on newer vehicles.
The Powerflex Rear Spring Upper Isolator is ideal for applications where isolating and dampening rear springs or shock absorbers is essential, such as in commercial vehicles, heavy machinery, and off-road vehicles.