After 8 months search and test, we have finally advance three type high quality spring bushing. They are oem number:

1. 8-97184-699-0

2. 8-97227-996-0

3. 8-97074-826-0

We follow to same size as genuine parts, and use high quality rubber. So our spring bushing have long life even in overload truck. It is  easier to change and once finish install it is stronger, because the shape and the size are fully consider the shape of the sping.