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Front wheel wobble after wheelie?? #714988
06/03/10 12:40 PM
06/03/10 12:40 PM
Joined: Jul 2006
Posts: 125
florida
crooksduster Offline OP
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crooksduster  Offline OP
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florida
I was wondering if anyone could tell me what causes this and what I can do to fix the problem. My front end is stock with 90/10 shocks and is probably pretty warn out. If u pause/play the video, its pretty scary how bad it wobbles in and out..

http://www.youtube.com/watch?v=A_mSJcJBFmQ

Re: Front wheel wobble after wheelie?? [Re: crooksduster] #714989
06/03/10 12:46 PM
06/03/10 12:46 PM
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Quicktree Offline
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check for worn front suspension parts. I would replace the shocks if they are old and worn out.

Re: Front wheel wobble after wheelie?? [Re: crooksduster] #714990
06/03/10 12:47 PM
06/03/10 12:47 PM
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Romeo MI
MR_P_BODY Offline
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Romeo MI
Just the standard toe change... do a toe curve to
see what you have.... assuming you have good parts

Re: Front wheel wobble after wheelie?? [Re: Quicktree] #714991
06/03/10 12:50 PM
06/03/10 12:50 PM
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Az
Crizila Offline
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Quote:

check for worn front suspension parts. I would replace the shocks if they are old and worn out.


plus not enough caster.


Fastest 300
Re: Front wheel wobble after wheelie?? [Re: MR_P_BODY] #714992
06/03/10 07:57 PM
06/03/10 07:57 PM
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Posts: 12,339
somwhere
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smokinwoody Offline
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somwhere
check that steering box for excessive play too..what a wobble when it came down...check those tierod ends out as well...

time for a front end rebuild or replacement..

Re: Front wheel wobble after wheelie?? [Re: smokinwoody] #714993
06/04/10 08:48 AM
06/04/10 08:48 AM
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Posts: 991
Addison,IL
OUTLAWSSAA Offline
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Addison,IL
Whenever I've had that problem,its always been the idler arm bushing.Disconnect the idler arm from the draglink and see if there's any play in the bushing.

Re: Front wheel wobble after wheelie?? [Re: OUTLAWSSAA] #714994
06/04/10 01:04 PM
06/04/10 01:04 PM
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A shed in England
Tig Offline
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A shed in England
Mine does exactly the same thing, all the front suspension pieces are new..... except the idler arm bushing


'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
Re: Front wheel wobble after wheelie?? [Re: Tig] #714995
06/04/10 02:24 PM
06/04/10 02:24 PM
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Quote:

Mine does exactly the same thing, all the front suspension pieces are new..... except the idler arm bushing


thats the first place I would look

Re: Front wheel wobble after wheelie?? [Re: Quicktree] #714996
06/04/10 07:23 PM
06/04/10 07:23 PM
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DFW
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mr_340 Offline
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I always thought it was bump steer. A lot of the SS/AH cars do this. Would a stiffer idler bushing help/eliminate the problem? I need to rebuild the front end on my 1969 Barracuda, so I could make the changes while I have it all apart.


Floyd Lippencott IV
Re: Front wheel wobble after wheelie?? [Re: mr_340] #714997
06/04/10 08:02 PM
06/04/10 08:02 PM
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glendora, ca.
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Deepockets Offline
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glendora, ca.
same thing here, with all new parts. i have'nt really looked closely to see if i can do this yet, but in my mind i'd like to put the tie rods on the top of the spindle by means of a heim joint on the outers and ream the spindles out to accept a shouldered bolt. that would keep the alignment straighter.

Re: Front wheel wobble after wheelie?? [Re: OUTLAWSSAA] #714998
06/04/10 09:42 PM
06/04/10 09:42 PM
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Posts: 316
Ohio
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Lil Wedge Offline
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Ohio

Re: Front wheel wobble after wheelie?? [Re: mr_340] #714999
06/05/10 05:23 PM
06/05/10 05:23 PM
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The Swamp
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Sixpak Offline
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The Swamp
Quote:

I always thought it was bump steer. A lot of the SS/AH cars do this. Would a stiffer idler bushing help/eliminate the problem? I need to rebuild the front end on my 1969 Barracuda, so I could make the changes while I have it all apart.




Bingo...bump steer, guys, first all the front end parts must be in tip-top shape, then ya gotta plot the toe changes as the chassis rises and correct it. Time to get out the DC chassis manual; it covers it very well and what to do to correct it.

Re: Front wheel wobble after wheelie?? [Re: Sixpak] #715000
06/05/10 09:57 PM
06/05/10 09:57 PM
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North Alabama
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Monte_Smith Offline
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North Alabama
This is correct, it's a bumpsteer issue. New parts may help, but it won't fix it.

Monte

Re: Front wheel wobble after wheelie?? [Re: Monte_Smith] #715001
06/06/10 01:27 AM
06/06/10 01:27 AM
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
Leon441 Offline
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Leon441  Offline
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Lynchburg, VA
Bumpsteer

When you have this the toe is out causing the tires to hit the ground turned out. Then they tug and try to jerk back. The more slack in your steering components and the more it does this.

You can limit travel. This limits some of the characteristics that can't be fixed on a stock front suspension.


Career best 8.02 @ 169 at 3050# and 10" tires small block power.






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