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What do you all think of the "improved design" rear shackles?

I put a set on a 70 Challenger once and thought I could tell a difference. I couldn't say for sure since I think the bushings were crap that I took out so it may have just tightened things up back there. Wasn't all that much more since I needed the bushings anyway.



On a street car or a car with 60 series tires, you won't feel a gain. The gain you felt is from the bad bushings getting replaced. IHMO, you need a lot of other agressive suspension improvements to get to the point of seeing the gain from an improved design shackle.