Re: Will biased leaf springs affect the front T-bar adjustment?
[Re: rarefish]
#2496212
05/14/18 11:24 PM
05/14/18 11:24 PM
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Joined: Jan 2003
Posts: 7,548 Albany, NY
67SATisfaction
The member whose name is actually Art
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The member whose name is actually Art
Joined: Jan 2003
Posts: 7,548
Albany, NY
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I might have not had the control arm down enough when I reinstalled the T-bar. I really don't think that is the case. I don't think that's the case either. If I'm recalling correctly my front-end rebuild a few years ago.. yes, you drop the LCA down to withdraw the T-bar.. but inserting the T-bar into the LCA socket differently on one side from the other would have a HUGE effect ---> that's going to twist one T-bar 30 degrees more than the other side.. it would not be an inch. - Art
65 Satellite hardtop 361/4bbl console 727 2.76 67 Satellite convert 383/2bbl column 727 3.23 67 Lancia Fulvia Sport 1.3 Zagato. Alloy body, 1.3L V4 DOHC 4-spd 67 Lancia Fulvia Rallye 1.3. Alloy panel, 1.3L V4 DOHC 4-spd 71 Alfa Romeo GT Junior 1300 Zagato, 1.3L 4cyl DOHC hemi 5-spd 82 Alfa Romeo GTV6 2.5L SOHC hemi V6 5-spd transaxle 75 Maserati Bora US spec 4.9L DOHC hemi V8 5-spd ZF 77 Maserati Khamsin Euro spec 4.9L DOHC hemi V8 5-spd ZF 07 Aston Martin DB9 6.0L DOHC V12 6spd transaxle
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Re: Will biased leaf springs affect the front T-bar adjustment?
[Re: rarefish]
#2496306
05/15/18 08:37 AM
05/15/18 08:37 AM
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Joined: Feb 2009
Posts: 895 Illinois
StrkrDart69
super stock
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super stock
Joined: Feb 2009
Posts: 895
Illinois
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I chose after reading many threads about this subject, Mancini HD springs. Not SS springs. I went with Mancini springs because of the feedback. They are a level spring . No bias. A lot of people did not like the raised stance to once side, or how high the SS springs jacked the car up. I am happy with the HD springs. Nice ride height and level. I have them in my 69 Dart. Def thinking you have a torsion adjustment issue. The bars could of been adjusted to old worn rear leaf springs and would of needed adjustment anyways.
Last edited by StrkrDart69; 05/15/18 08:55 AM.
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Re: Will biased leaf springs affect the front T-bar adjustment?
[Re: rarefish]
#2496735
05/16/18 01:51 AM
05/16/18 01:51 AM
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Joined: Apr 2018
Posts: 12 arizona usa
oldschool
member
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member
Joined: Apr 2018
Posts: 12
arizona usa
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I had the same problem on my 69 coronet. XHD springs DCC-4452982 and 3.This was on a completely new build,so i didnt notice it because i had to level it from the start.2 years later i was putting a rear sway bar on it and had a hard time hooking it up ,about 1" higher on the right side(jack stands under axle)I didnt like it .so i replaced them with mono leafs.I like it much better now.O yeah left side was 5 leaves right 5 plus 2 half leaves.
Last edited by oldschool; 05/16/18 01:54 AM.
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Re: Will biased leaf springs affect the front T-bar adjustment?
[Re: TC@HP2]
#2496855
05/16/18 03:23 PM
05/16/18 03:23 PM
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Joined: Jan 2003
Posts: 2,262 New York
rarefish
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 2,262
New York
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Will biased leaf springs affect the front T-bar adjustment? Yes. Typical means is to adjust the opposing t-bar up a bit to offset the imbalance. Whether or not that impacts a drag launch depends and can vary from car to car and driver to driver.
Typically XHD springs don't do this but SS sets certainly do. I'd also verify both shackles are pointed rearward. Sometimes they can flip forward during install and if you miss this, then one side will sit higher.
Since you took the driver's side bar out and re-installed and now it sits low relative to the adjusting bolt, I'd lean towards not exactly duplicating its re-install, IE a hex off. The lower control arm should be as far down as possible to align the bar install. It is possible to raise it up to the next aligning hex and install without enough load on the bar. You would only want to do this if you are running a t-bar in the 1.2X size. Anything smaller will require adding more and mroe adjusting tension as t-bar diameter goes down to restore original ride height. Thanks, I have been figuring that the right rear spring was the cause of the left front being a little down and needing more t-bar adjustment to level the front end. Both shackles are angled back even and correctly. What puzzled me was that I had read where a higher spring rate on the right side would cause the right front to be down some. The opposite of my situation. If these springs weren't so expensive ($212 for one spring). I would go out and by another right side one and then install it on the left side to level the rear.
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Re: Will biased leaf springs affect the front T-bar adjustment?
[Re: oldschool]
#2497193
05/17/18 01:48 PM
05/17/18 01:48 PM
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Joined: Aug 2003
Posts: 43,723 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,723
Bend,OR USA
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Weight scales would sure come in handy about now. Every 1962 and up Mopar A,B and E body car, stock or set up for drag racing, I have weighed all four corners on had more weight on the front end than the rear and the L/F had the most weight, a little less weight on the R/F, the L/R was heavier than the R/R without the driver Once you put the driver in it does affect the weights on the corners also just like moving the battery to the right rear corner of the trunk My old pump gas Duster with the motor moved back one inch and the rear end moved forward one inch with ladder bars and coil overs had 50.5 % weight on the front end with me in the car and full of fuel in the stock gas tank with two group 27 batteries in the R/R corner of the trunk and 49.5 % on the rear That car sat level without me in it and had pretty near even front rise under WOT with stock six cylinder torsion bars adjusted to get the front ride height level in the middle of the stock FSM ride height specs.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Will biased leaf springs affect the front T-bar adjustment?
[Re: rarefish]
#2497771
05/19/18 01:40 AM
05/19/18 01:40 AM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Every car I put SS springs on always sits a bit unlevel. And I always have to adjust the torsion bars some to get them to sit ok. Some say don't change the torsion bars but I sure as heck wont drive a Mopar down the road sitting 4 or 5 inches unlevel. Actually my 63 sat more unlevel then most I do as it was a good 4 or more inches off and I adjusted my torsion bars to get it level. The car handles normal and works fine at the track. About the only thing they may contribute to is my 63 pulls the left front up more then the right front when I launch at the track but the car goes as straight as an arrow. You can have them sit a little unlevel of maybe and inch or 2 but I wont drive my Mopar sitting any more unlevel then that. And other then changing the leaf springs again if it sits off after new springs went on adjusting the torsion bars is the only way to level the car out some. I have adjusted many torsion bars on cars that got SS springs and they have all drove fine and worked fine at the track. Ron
Last edited by 383man; 05/19/18 01:41 AM.
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Re: Will biased leaf springs affect the front T-bar adjustment?
[Re: rarefish]
#2498505
05/21/18 02:58 AM
05/21/18 02:58 AM
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Joined: Jan 2003
Posts: 5,791 Hamilton, Ontario Canada
Magnum
master
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master
Joined: Jan 2003
Posts: 5,791
Hamilton, Ontario Canada
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What is ideal for drag racing may not suit the set up for everyone else.
One popular misconception is a strong spring is a taller spring. In the case of SS springs it is. The right rear is not only stronger (more leafs) but it also has more arch (height).
If preloading does not suit you. Dearch the passenger side or arch the driver's side an inch or two.
Last edited by Magnum; 05/21/18 09:24 PM.
69 Super Bee, 93 Mustang LX, 04 Allure Super
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