I've noticed over the last couple of days that there's some weird vibration on my car when I'm going over 90MPH. I recently had the Steeda Underdrive Pulleys and Lower Control Arms (the billet ones) installed on my car, so I'm thinking that if must have been something that was done wrong when those two things were installed (they were installed the same day). It's not a vibration that causes any noise, just seems like something is out of line. I took the car to a friend that has a tire shop asked him to align the tires because of the problem I was having, he told me not to do it, that aligning the tires was only going to involve them working with the weights on the rims and he didn't want to charge me for that and not solve the problem. What else should I be checking? The car is fine until you go over 80-90MPH.
Thanks!
Thanks!