RamFam
Junior Member
I just got a set of 305/55r20 Amp Terrain Grippers about 1.5 weeks ago. Ever since I got them put on, it seems like it rides rougher than it should. I know it went from the stock SR-A's to 10 ply almost mud terrains but I have read reviews saying that they ride smooth. I had a place re-balance my rear tires because I could tell at least one of them were off balance. The rough ride doesn't feel like an out of balance tire anymore though. Could they be out of round? It is more pronounced at interstate speeds, but I do notice it in town also, a little bit. Any Ideas?