Montclaire
Well-Known Member
Ok, there seem to be two main manufacturers of poly iso-k bushings, Energy Suspension and Prothane. I just bought the ES kit but haven't installed it yet. It looks like the bushings have an integral steel support, and they are all round, although two out of eight halves are taller than the others. Summit is listing these for $112.26.
https://www.summitracing.com/parts/ens-5-4111r
The other kit is from prothane, with what look to be two major differences. One, there does not appear to be a reinforcement sleeve in the center of the bushing halves. And two, the bottoms are square-sided, like the originals. The price is much lower at $62.37.
https://www.summitracing.com/parts/ptp-4-101
So the question is, has anyone installed either kit? Did you have issues with the Energy Suspension bushings due to the round (as opposed to oblong) shape? If I knew about the prothane kit before I ordered, I probably would have gone for the cost savings.
Thanks
https://www.summitracing.com/parts/ens-5-4111r
The other kit is from prothane, with what look to be two major differences. One, there does not appear to be a reinforcement sleeve in the center of the bushing halves. And two, the bottoms are square-sided, like the originals. The price is much lower at $62.37.
https://www.summitracing.com/parts/ptp-4-101
So the question is, has anyone installed either kit? Did you have issues with the Energy Suspension bushings due to the round (as opposed to oblong) shape? If I knew about the prothane kit before I ordered, I probably would have gone for the cost savings.
Thanks