why does my bronco shimmy?
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Freshman User
Joined: Aug 2001
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why does my bronco shimmy?
when i am driving down the road, and i hit a small bump, by bronco shakes really bad from left to right. I dont know what is wrong. Is it the tires? I have a pretty worn out steering box too. could it be that. any ideas please let me know. thanks
jake
jake
Junior User
Joined: May 2002
Posts: 77
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From: Oceanside USA
why does my bronco shimmy?
I have had 2 broncos and they both did this. The 70 did this after I removed the Dana 30 front axle and installed a complete hub to hub used (worn out)Dana 44 front axle, it turned to be the ball joints. My 74 did this because of bad bushing on the track bar, the bar that goes from the axle housing to the frame. Usually the upper bushing are the one's to watch. Replace any worn bushings w/ the polyurethane ones. You can check for front end wear by having someone turn the steering wheel side to side while you look from under the bronc'. Also be careful of alignment shops, I recently took my 70 F250 to the shop to see what was causing a front end shake at 65 MPH and they wanted to replace everything at a cost of $1,400, I said no way and fixed it myself for $65 bucks by tightening some loose bolts on the shock mounts and also replacing the shocks in the front. Hope this helps.
New User
Joined: May 2002
Posts: 14
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From: Reno
why does my bronco shimmy?
My 68 did the same thing, bad drag link was the culprit.Friend of mine gave me his old drag link because he went with a F-150 tie rod over conversion from BC Broncos.Now the drag link he gave has gone south ,so I'm going tie rod over myself.I'm going with a aftermarket set-up this time that has replaceable ends.I'm not sold on heim joints at all so I want tie rod ends on my new set-up.I'm going with a rockstomper.com,Avalance Engineering or the F-150 set-up.All are about the same price as stock but you have to ream the the knuckle ends to attach the rod ends from above.
Senior User
Joined: Jan 2003
Posts: 164
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From: Columbia, Illinois
why does my bronco shimmy?
Before you check anything else, check track arm bushings. The easiest way to check this is to sit in the vehicle, turn the steering wheel side by side real slow and watch the hood. If it moves to the left when turn the wheel left, or right when turning right, the track bar bushings are shot. This has caused me some shimmy. These are cheap and easy to replace, go with eurathane ones when doing it.
Mike
66 Bronco
00 F150 Supercab
Mike
66 Bronco
00 F150 Supercab
Postmaster
Joined: Dec 2002
Posts: 3,594
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From: Southern Oregon USA
why does my bronco shimmy?
[updated:LAST EDITED ON 06-Jan-03 AT 11:38 PM (EST)]I think everyone touched on the main culprit of the "Bronco Shimmy".
Most common I see are worn track bar bushings. Is it lifted?
Have someone turn the wheel back and forth while you are under there with a flashlight. Look for any play at steering linkage, suspension mounting, steering box, etc. Also take into account worn shocks, tires and wheels for balance.
Jason
Most common I see are worn track bar bushings. Is it lifted?
Have someone turn the wheel back and forth while you are under there with a flashlight. Look for any play at steering linkage, suspension mounting, steering box, etc. Also take into account worn shocks, tires and wheels for balance.
Jason
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broncoakatank
1987 - 1996 F150 & Larger F-Series Trucks
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