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Bump steer?

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Old 12-08-2010, 11:13 AM
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Default Bump steer?

Ever since I got my 20" wheels and some good year tires the truck has drive like crap. It just wonders everywhere on the road. Think the word is bump steer... How can I get rid of this and get my good steering back?
 
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Old 12-11-2010, 02:24 AM
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any lift? my old ford wandered i changed tires and dropped the the lift 6 inches from 12 and adjusted the axles and redone all the brackets and if u were goin straight and u let the steerin wheel go bygod it went straight before i was all over the place and rode rougher then sittin in a radio flyer goin down a gravel road
 
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Old 12-11-2010, 06:29 AM
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No lift. It's stock height. I just put on BD steering box stabilizer and it's still the same. Would a better dampening rod help anything?
 
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Old 12-11-2010, 07:27 AM
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What size are the tires? Wider tires will cause a little wandering, not much you can do about it.
 
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Old 12-11-2010, 09:48 AM
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when you went from the 16-17 stock tires to the 20 inch tires you changed the steering geometry... did you get a good alignment afterwards? if not I would be willing to bet the toe in is out of wack... this usually if what fixes the wandering... and also have the caster checked as well....
 
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Old 12-17-2010, 10:28 AM
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The tires are 275/65r20. Not really big I don't think... And no lift on truck. Just stock height. I've had a few alignments From the Goodyear shop where I got the tires. Been same every time. I just installed the BD steering box stabilizer hoping that would fix it but no help. Would a better steering dampner help?

---AutoMerged DoublePost---

About the steering geometry stuff changing , the guy at the shop did say something about that stuff and kinda drew me a picture of what is happening but it just looked like a bunch of scribble from maddens play book.
 

Last edited by dalton06; 12-17-2010 at 10:28 AM. Reason: Automerged Doublepost
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Old 12-17-2010, 04:36 PM
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Not bump steer. Bump steer is when you hit a bump and it rips the steering wheel out of your hands. It's caused by the steering arm and the track bar rotating along different arcs. Adding new tires won't affect that.
 
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