Master bushing kit question?

[84_t-type]

Anyone here ever use this kit http://www.summitracing.com/search/...=Ascending&keyword=Energy Suspension 3.18110R ? And or know the difference between the red bushings and black bushings?

 

[charlief1]

The poly in black look like stock, but other than that, no difference. They both will ride harsh and squeak eventually.