I was thinking of swapping my stockers for some energy suspension PU endlinks. Is there any noticable difference, maybe a little tighter, with these or will it just make things vibrate more and have crappier ride characteristics?

Bad Andy

 

I put these on the front and rear of my SS. They have a thicker bolt and I needed that as I have bent both of the rear stock ones. I also put in their bushings so I canot tell you how much difference just the end links made. There was a definate difference with the package, less body roll in hard turns.