I just put on some after market wheels, kept the original tires, & I watched the guys at Discount tire balance them. They got them to show zeros on the machine, which is what you want to achieve proper balance. At 65-70 I start to get a shimmy in the steering wheel. I did not get this with the stock wheels....Iam pretty sureIt seems more pronounced on different road surfaces.It definately feels like a balancing problem, but I am not absolutely sure!

The stock wheels are either 5 or 5.5 inches wide & these are 6 inches wide. I am getting different tires as well, so for now I am gonna wait and see what happens. The pressure is correct and I have experimented with it as well. I am wondering if the wider rim has changed the tire characteristics, mainlythe sidewall. Maybe the sidewall is straighter and flexing less, where the narrower rim brought the tire beads inward a little, putting more curve on the sidewalls & allowing more flex forbetter road absorbtion. I will see what happens with the new tires. I am putting on 205/60-14's which call for a 6" wide rim. There is always the roadforce balance to try if need be!

Thanks!