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Body still leans, even with brand new springs #1553210
12/26/13 01:22 AM
12/26/13 01:22 AM
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Oklahoma
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VoodooCLD Offline OP
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Oklahoma
I have a 73 challenger. When i removed the coil overs, i noticed the body had a serious lean to the drivers side. I went ahead and bought some espo stock height 6 leaf leaf springs, it also has brand new 1" torsion bars. I still have a half inch lean to the drivers side.


What could be causing this lean? I jacked up the rear and broke loose the rear springs mount to make sure it wasn't binding.

Re: Body still leans, even with brand new springs [Re: VoodooCLD] #1553211
12/26/13 01:31 AM
12/26/13 01:31 AM
Joined: Jan 2007
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IN
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ahy Offline
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It could well be t bar adjustment settings. Imbalance in the front will show up in the rear. I'd double check front ride height. Even better would be to put it on a 4 point scale and adjust Tbars to even things out.

Also it wouldn't hurt to check with ESPO. Some rear leafs - like XHD - were bias designs. They could lean a little at rest and balance out under heavy acceleration. I don't think that is the case with ESPO but wouldn't hurt to ask.

Re: Body still leans, even with brand new springs [Re: VoodooCLD] #1553212
12/26/13 01:32 AM
12/26/13 01:32 AM
Joined: Jul 2008
Posts: 259
Khemi, Stygia
Mebsuta Offline
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Khemi, Stygia
My old RR leans a little bit. It's not exactly symmetric. If I make it all even-Steven in the back, the front will be off a little bit. It's just like that, or the unibody has twisted a little bit after so many years.

My 99 F150 is not quite symmetric either. I think that's just how it is sometimes with stuff that was mass produced as fast as possible.


68 Roadrunner. 383 4-spd. Beat up.
Re: Body still leans, even with brand new springs [Re: ahy] #1553213
12/26/13 01:19 PM
12/26/13 01:19 PM
Joined: Oct 2011
Posts: 460
Oklahoma
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VoodooCLD Offline OP
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Oklahoma
Quote:

It could well be t bar adjustment settings. Imbalance in the front will show up in the rear. I'd double check front ride height. Even better would be to put it on a 4 point scale and adjust Tbars to even things out.

Also it wouldn't hurt to check with ESPO. Some rear leafs - like XHD - were bias designs. They could lean a little at rest and balance out under heavy acceleration. I don't think that is the case with ESPO but wouldn't hurt to ask.




I did quite a bit of measuring, and got the torsion bars and front end set at the same height. Still have a pretty good lean out back.

Last edited by VoodooCLD; 12/26/13 01:19 PM.
Re: Body still leans, even with brand new springs [Re: VoodooCLD] #1553214
12/26/13 01:22 PM
12/26/13 01:22 PM
Joined: Nov 2003
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Lincoln Nebraska
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RapidRobert Offline
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Lincoln Nebraska
You might call a frame/body shop & see what they'd want just to check if it's tweaked


live every 24 hour block of time like it's your last day on earth
Re: Body still leans, even with brand new springs [Re: VoodooCLD] #1553215
12/26/13 01:43 PM
12/26/13 01:43 PM
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Posts: 11,543
chicagoland,usa
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buildanother Offline
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chicagoland,usa
1/2" is really common and not that bad, but I would think that some slight torsion bar tweaking would straighten it out.

Re: Body still leans, even with brand new springs [Re: VoodooCLD] #1553216
12/26/13 03:10 PM
12/26/13 03:10 PM
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Pikes Peak Country
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TC@HP2 Offline
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Quote:


I did quite a bit of measuring, and got the torsion bars and front end set at the same height. Still have a pretty good lean out back.




This is the issue. To offset the back, you can't have the front at identical heights. You would need to adjust the opposing corner down, so you passenger side t-bar needs to be backed out a bit, or your driver's side needs to crank in a bit.

Re: Body still leans, even with brand new springs [Re: TC@HP2] #1553217
12/26/13 05:43 PM
12/26/13 05:43 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
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Many FSM's have the body specs in them, you could measure things but sounds like you have a body tweak issue to me.

If it really bothers you, add a shim between the axle perch and the spring on the "low" side.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Body still leans, even with brand new springs [Re: VoodooCLD] #1553218
12/26/13 05:56 PM
12/26/13 05:56 PM
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RSNOMO Offline
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Start by getting it on a frame rack...

Instead of 'compensating for droopage'...

Re: Body still leans, even with brand new springs [Re: RSNOMO] #1553219
12/26/13 06:26 PM
12/26/13 06:26 PM
Joined: May 2005
Posts: 4,879
Florida
BDW Offline
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Florida
If you're happy with the front height, just add a 1/2" lowering block to only 1 side in the rear.

Re: Body still leans, even with brand new springs [Re: BDW] #1553220
12/26/13 08:58 PM
12/26/13 08:58 PM
Joined: Jan 2003
Posts: 27,421
Balt. Md
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383man Offline
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Balt. Md
Every time I put SS springs on a car I have to adjust the torsion bars a good bit to get it sitting level. Even if the front looks level I still adjust them and get the front and rear within a 1/2 on both sides at front and rear. You have to work them a little at a time and then bounce the heck out of it before you take a reading. If the R/R is still lower then the L/R then either lower the L/F or raise the R/F some. You really have to work at it but you can get them all within a 1/2" which is acceptable to me. Ron

Last edited by 383man; 12/26/13 08:58 PM.
Re: Body still leans, even with brand new springs [Re: 383man] #1553221
12/27/13 01:11 AM
12/27/13 01:11 AM
Joined: May 2004
Posts: 12,478
Taxes & Virus's R-US, NY
Dragula Offline
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Taxes & Virus's R-US, NY
Quote:

Every time I put SS springs on a car I have to adjust the torsion bars a good bit to get it sitting level. Even if the front looks level I still adjust them and get the front and rear within a 1/2 on both sides at front and rear. You have to work them a little at a time and then bounce the heck out of it before you take a reading. If the R/R is still lower then the L/R then either lower the L/F or raise the R/F some. You really have to work at it but you can get them all within a 1/2" which is acceptable to me. Ron




You can...But stuper stocks, and all the other repo styles lean...Everyone straightens them out by tweeking the torsion bars which goofs up the corner weights if you scale it...Go to Calvert Mono's, and there will be no lean...Dead even....1.48 60ft on pump gas with mine..hooks in a car wash.


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: Body still leans, even with brand new springs [Re: Dragula] #1553222
12/27/13 02:05 AM
12/27/13 02:05 AM
Joined: Jan 2003
Posts: 27,421
Balt. Md
3
383man Offline
Too Many Posts
383man  Offline
Too Many Posts
3

Joined: Jan 2003
Posts: 27,421
Balt. Md
Quote:

Quote:

Every time I put SS springs on a car I have to adjust the torsion bars a good bit to get it sitting level. Even if the front looks level I still adjust them and get the front and rear within a 1/2 on both sides at front and rear. You have to work them a little at a time and then bounce the heck out of it before you take a reading. If the R/R is still lower then the L/R then either lower the L/F or raise the R/F some. You really have to work at it but you can get them all within a 1/2" which is acceptable to me. Ron




You can...But stuper stocks, and all the other repo styles lean...Everyone straightens them out by tweeking the torsion bars which goofs up the corner weights if you scale it...Go to Calvert Mono's, and there will be no lean...Dead even....1.48 60ft on pump gas with mine..hooks in a car wash.





You are right it will throw off the corner weight but for a street car I dont think they will ever notice anything as none of my friends have. I did the same with my 63 and I have not scaled it with corner weights as I have only weighed the car itself. But I know mine off some as I can see on the launch the left side comes up more then the right side but it goes as straight as an arrow and works good for a leaf spring street car. It is kinda goofy how far off some cars sit after putting SS springs on it. I considered caltracs for my 63 but with a 1.50 sixty at 10.70's I really dont think it will pick up alot. Ron

Re: Body still leans, even with brand new springs [Re: 383man] #1553223
12/27/13 07:44 PM
12/27/13 07:44 PM
Joined: Oct 2011
Posts: 460
Oklahoma
V
VoodooCLD Offline OP
mopar
VoodooCLD  Offline OP
mopar
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Joined: Oct 2011
Posts: 460
Oklahoma
Quote:

Quote:

Quote:

Every time I put SS springs on a car I have to adjust the torsion bars a good bit to get it sitting level. Even if the front looks level I still adjust them and get the front and rear within a 1/2 on both sides at front and rear. You have to work them a little at a time and then bounce the heck out of it before you take a reading. If the R/R is still lower then the L/R then either lower the L/F or raise the R/F some. You really have to work at it but you can get them all within a 1/2" which is acceptable to me. Ron




You can...But stuper stocks, and all the other repo styles lean...Everyone straightens them out by tweeking the torsion bars which goofs up the corner weights if you scale it...Go to Calvert Mono's, and there will be no lean...Dead even....1.48 60ft on pump gas with mine..hooks in a car wash.





You are right it will throw off the corner weight but for a street car I dont think they will ever notice anything as none of my friends have. I did the same with my 63 and I have not scaled it with corner weights as I have only weighed the car itself. But I know mine off some as I can see on the launch the left side comes up more then the right side but it goes as straight as an arrow and works good for a leaf spring street car. It is kinda goofy how far off some cars sit after putting SS springs on it. I considered caltracs for my 63 but with a 1.50 sixty at 10.70's I really dont think it will pick up alot. Ron




I did play with the torsion bars quite a bit, to try and get it level. No ammount of tweaking seemed to make it significantly better. Where can i get some shims to lower the passenger side (i think i like the lower stance of the drivers side better)

Re: Body still leans, even with brand new springs [Re: VoodooCLD] #1553224
12/27/13 08:14 PM
12/27/13 08:14 PM
Joined: Apr 2010
Posts: 10,570
Sunny South Florida
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i know this sounds simplistic, but dont forget the battery, steering column and gearbox, p/s pump, master cylinder, pedal assemblies, etc, are all on the drivers side. (in most cases). you add it up, you are looking at several hundred (or more) pounds of extra weight hanging on the drivers side of the car. get a 200 pound guy to sit of the pass fender, and measure again. i bet the numbers are really close.


"When Tyranny Becomes Law, Rebellion Becomes Duty"

Re: Body still leans, even with brand new springs [Re: Golden-Arm] #1553225
12/27/13 10:51 PM
12/27/13 10:51 PM
Joined: May 2005
Posts: 4,879
Florida
BDW Offline
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Florida
Here's a 1/2" block, they have 1, 1.5, 2 .......................

http://www.summitracing.com/parts/afc-20244/overview/







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