I just recently added new rims ( Steeda Ultralites ) 17 by 9's to my 04 GT. Ever since added them, I have a shake in the steering wheel at around 50 mph. I have gotten them balancing twice now and cant seem to get rid of the shake. I have 245 45 17 tires in front and 275 40 17 in rear. Any ideas ???

 

Find a shop with a Hunter 9700 balancer, and someone who knows how to use it.

Explain the problem to them and they should be able to help you out. Ask them to dismount the tires and spin up just the wheels to make sure they are round and balanced. They should be close to perfect, if not send 'em back to Steeda.

If they need to use a lot of weight in one location ask them to dismount the tire, rotate it 120° and reinstall it--if it gets worse then turn it another 120° and find the best tire/wheel relationship. Then after they have balanced the wheel, ask them to loosen the wheel on the spindle, reposition it by 120°, and recheck the balance.

Ultralight wheels can be troublesome as "ultralite", all other things being equal, also means "less alloy/less sturdy". Avoid potholes and curbs like the plague.

Also, the lighter the wheels the more the overall dynamic balance is influenced by the tire's construction and balance, which more often than you'd like sucks--this is why playing with the tire's position on the wheel may make things better or worse iof the wheels are not perfect.

 

If you have a discount tire/ america's tire near you go in and tell them you want them road forced it will cost you a bit more but this will position the wheel and tire in the best position for balancing. This shpould get rid of your problems.

 

That's what the Hunter 9700 does...