I'm assuming you are using the same tires and wheels, without re-balancing, as you did prior the the suspension change, and the wheel weights have not been knocked off. Try swapping the front and rear tires. It's possible the rear tires are now on the front, and the balance was off before, a wheel weight got knocked off during the suspension work, or coincidentally a tire has gone bad. Usually, suspension shake at speed is tire balance, tire damage (shifting belts) or very worn suspension components. If after swapping tires the condition still exists you probably have a suspension problem which will require more troubleshooting. The need to turn the wheel to travel in a straight line indicates incorrect alignment. When checking the problem, make sure you are traveling on a flat, level road (not one with a high crown).

 

No I did the suspension change first. Drove it for a day, then had the alignment, and the tires rotated and balanced. Would have done it the same day but I had to get to work. I really only feel it at 65 mph and higher.

 

I would just have the tires rechecked. Most places will give a warranty on tire balance. It is possible that they missed added a weight, or you threw a new weight. Should be quick check. Dig deeper after that if they do not find and issue.

 

Yea that is where I was thinking I should start. I really hope that is all it is. Just a pain when something so simple seems to go so wrong.

Thanks for the help and I will update on the outcome.

 

Well I dropped it back off at firestone last night. As I did the manager heard me talking with the Tech. He was kinda surprised and said, Wow that is the Third one Today complaining about mis-balancing and Alignment. So it makes me feel a little better that I'm not the only one but at the same time not the best feeling that someone doesn't know what there doing.

 

Well got it back and took it for a quick test on the Hwy and seems fine now. The service guy said one of the rear wheels was out by 1/2 ounce but as I looked over the wheels I could see 3 of the four tires all had different wheel weights on them then when I left it.

 

Glad to hear your problem has been resolved. Maybe more than one wheel was out of balance, but they didn't want to admit it.

 

Yea That is what I'm thinking.