Re: 56 Rear Torque Arm Bushiongs

Posted by Dwight Heinmuller On 2017/12/19 13:39:16

The polyurethane is not more "rigid" than rubber. It has the same Durometer (hardness) value as rubber. The difference between the two is "compression set." Poly is more resistant to compression than rubber, and will, therefore, hold it's shape far longer. Dwight Heinmuller