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Discussion Starter #1
On my '96 Roadmaster I just replaced the 235-70-15's with 255-50-17's
on 17" x 8" steel wheels. The new tires make a big difference in how confident the car feels but when I get to 55mph or more the steering wheel shake back and forth from left to right. My trip to work this morning was the first time I had it up to speed since I put the wheels
on. The car does not shake just the steering wheel. The car has 119,000 miles but when I bought it last fall I replaced all the steering. nothing else is loose. Obviously getting the balance checked on the tires and wheels is first but they were just done two days ago.
Any ideas on what else to look at?
 

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The wheels should have been balanced by the installer when the tires were put on.
I'd take it for an alignment and get the tech to check out the issue.
Ball joints, bearings, bushings, etc.
Maybe grab the intermediate steering column shaft and wiggle it around to see how much play there is.
 

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Discussion Starter #3
I have all new wheel bearings and seals and rotors that will go on this weekend. I will have the wheels re-balanced by a shop I trust.
I really want to wait on an alignment until I do the A-arms, springs, and shocks.
The car was aligned last Nov. when I replaced all the steering parts.
All the other B-body's I have done with wider stickier tires were aligned with more aggressive settings. This one was set to stock.
 
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