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Unread 02-08-2010, 05:42 PM   #1
bow_hunter8
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yet another steering shimmy. what to do now?

ok i had death wobble right after i put my lift on tracked it down and it was the track bar, fixed that. also put new stabilizer on just for fun... then i got some new tires on stock wheels and it was fine, just this last weekend i got some 31-10.50 stt's on aftermarket wheels that have 4'' bs, came off of a buddies jeep and they was perfectly fine on his with no shimmy or vibes. Now with them on mine at 45-53 or so i have a shimmy in the steering wheel nothing horrible or even remotely close to DW but its bugging me as i drive 100 mile round trip to work everyday, what should i check next, all tie rod ends seem good track bar good alignment good tire balance good, any ideas?

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Unread 02-08-2010, 05:44 PM   #2
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Likely tire balance. It wouldn't hurt to rotate them to see if it changes. Otherwise, some tires are impossible to get perfect. I have a very slight wobble around 60mph with 'perfectly' balanced tires. No biggie, don't let it worry you.
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Unread 02-08-2010, 05:47 PM   #3
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by slight i mean at 45-50 the steering wheel moves an inch back and forth or so
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Unread 02-08-2010, 05:50 PM   #4
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I've got an imaginary $50 on the table that it's tire balance. Go get them road force balanced at a reputable tire shop and try again. Make sure to have them check for runout on the wheel and tire as well.
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Unread 02-08-2010, 06:14 PM   #5
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ok ill have them rebalance the tires, and another thing is that we put the tires that was on the rear of the jeep i got them from on the front of mine because the ones on the front was chopped very slightly so we figured it would be best to have the two that wasnt chopped on the front of mine
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Unread 02-08-2010, 06:16 PM   #6
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also what about control arm bushings? with the tires on the ground with engine off and someone turning the wheel i can see the axle moving slightly side to side by looking at the control arms, like they are flexing side to side


EDIT: or should the new track bar not let the axle move at all side to side no matter what? it seems that the bolt didnt fit all the way snug in the metal bushing

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Unread 02-08-2010, 07:28 PM   #7
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The track bar bolt needs to fit very tight in the mount hole and in the bushing sleeve. Replace the bolt with a bigger bolt. Grade 12.9 10mm works well. You can get one at any good hardware store, like Ace.
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Unread 02-09-2010, 04:32 PM   #8
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ok i will go get a new bolt, and i just talked to the shop that i took the jeep to to get the tires balanced and they told me they checked all tie rod ends and ball joints and they was in great shape, then they inform me that the driver side brake caliper is sticking, the inner brake pad is busted in half along with all front brake pads are shot anyhow and that the rotors are too thin to turn, could this be any of the shimmy issues, and how important is the tires was 1.5 ounce out of balance or they had to add that much or something? would that little of weight make the shimmy?
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