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leaf spring front segment #2400395
11/08/17 11:50 AM
11/08/17 11:50 AM
Joined: Dec 2008
Posts: 1,284
okla.
sam64 Offline OP
pro stock
sam64  Offline OP
pro stock

Joined: Dec 2008
Posts: 1,284
okla.
I am thinking about putting cal-tracs on my belvedere,should I stay with 20" front seg.or go longer?Springs are already moved into the frame so fabbing for longer springs is not an issue.Thanks,Sam.

Re: leaf spring front segment [Re: sam64] #2400398
11/08/17 11:54 AM
11/08/17 11:54 AM
Joined: Jan 2003
Posts: 13,318
Marion, South Carolina [><]
an8sec70cuda Offline
I Live Here
an8sec70cuda  Offline
I Live Here

Joined: Jan 2003
Posts: 13,318
Marion, South Carolina [><]
Longer. Use the chevy length spring.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: leaf spring front segment [Re: sam64] #2400463
11/08/17 01:29 PM
11/08/17 01:29 PM
Joined: May 2005
Posts: 54
VA Beach, VA
R
Runnoft Offline
member
Runnoft  Offline
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Posts: 54
VA Beach, VA
I can't remember the exact front segment length but I'm pretty sure the spring for an S-10 pickup has the longest segment. There isn't one "Chevy" length. It depends on the model.


Cruiser: 66 Dodge Coronet 500, Indy SR 440, Gen 7 Accel EFI = 11.38 @ 116.
Racing: Brand X, X275 Procharged Smallblock on M1, Leafsprings, Holley EFI = 4.30 @ 168

Re: leaf spring front segment [Re: sam64] #2400466
11/08/17 01:32 PM
11/08/17 01:32 PM
Joined: Jan 2003
Posts: 13,318
Marion, South Carolina [><]
an8sec70cuda Offline
I Live Here
an8sec70cuda  Offline
I Live Here

Joined: Jan 2003
Posts: 13,318
Marion, South Carolina [><]
Pretty sure the length everyone uses is 25". Stock Mopars are either 20" or 22" IIRC. If you talk to Calvert Racing about the monoleaf springs, they'll tell you.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: leaf spring front segment [Re: sam64] #2400514
11/08/17 02:51 PM
11/08/17 02:51 PM
Joined: Jan 2003
Posts: 21,050
Niles , Ohio
T
therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
T

Joined: Jan 2003
Posts: 21,050
Niles , Ohio
Dont forget 21 also The early models had it.My 65 B runs a 21 inch but now has 20 inch SS springs with the correct hangers.Rocky


Chrysler Firepower
Re: leaf spring front segment [Re: sam64] #2400539
11/08/17 03:37 PM
11/08/17 03:37 PM
Joined: Mar 2010
Posts: 625
Indianapolis In. usa
Quickrunner Offline
mopar
Quickrunner  Offline
mopar

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Posts: 625
Indianapolis In. usa
I went with the chevy front segment length, its 25 inches. Calvert will help you on the phone with spring selection.


05 Ram 1500 Daytona package
71 Demon Gen3 hemi drag radial project



Missin' my 9 second 70 runner!
Re: leaf spring front segment [Re: sam64] #2400651
11/08/17 07:35 PM
11/08/17 07:35 PM
Joined: Sep 2005
Posts: 1,550
baldwinsville new york
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a493demon Offline
pro stock
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Posts: 1,550
baldwinsville new york
Digby runs the 20inch still and his cars been 4.19 in the 1/8th.
I run the 20 also and have been 5.46 so far .

Re: leaf spring front segment [Re: sam64] #2400932
11/09/17 12:18 PM
11/09/17 12:18 PM
Joined: Jan 2003
Posts: 3,443
Northern N.J.
hemi_doug Offline
master
hemi_doug  Offline
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Joined: Jan 2003
Posts: 3,443
Northern N.J.
So if you run a longer front segment do you have to compensate by moving the front spring hanger forward?



71 440-6 4spd & 69 Hemi 4spd
Re: leaf spring front segment [Re: hemi_doug] #2400942
11/09/17 12:40 PM
11/09/17 12:40 PM
Joined: Mar 2010
Posts: 625
Indianapolis In. usa
Quickrunner Offline
mopar
Quickrunner  Offline
mopar

Joined: Mar 2010
Posts: 625
Indianapolis In. usa
Originally Posted By hemi_doug
So if you run a longer front segment do you have to compensate by moving the front spring hanger forward?


Yes, by how ever longer you go with the segment. To keep the axel in same location.

IMAG2914.jpgIMAG2921.jpg

05 Ram 1500 Daytona package
71 Demon Gen3 hemi drag radial project



Missin' my 9 second 70 runner!
Re: leaf spring front segment [Re: a493demon] #2401024
11/09/17 03:48 PM
11/09/17 03:48 PM
Joined: Oct 2007
Posts: 472
Minnesota, USA
humpty Offline
mopar
humpty  Offline
mopar

Joined: Oct 2007
Posts: 472
Minnesota, USA
Ok I’ll bite. What is the secret to making the 20” spring work?

Re: leaf spring front segment [Re: sam64] #2401081
11/09/17 06:10 PM
11/09/17 06:10 PM
Joined: Mar 2010
Posts: 625
Indianapolis In. usa
Quickrunner Offline
mopar
Quickrunner  Offline
mopar

Joined: Mar 2010
Posts: 625
Indianapolis In. usa
$$$ good shocks is my guess. On really really fast car anyway. Like custom Mencer or Santhuff.


05 Ram 1500 Daytona package
71 Demon Gen3 hemi drag radial project



Missin' my 9 second 70 runner!
Re: leaf spring front segment [Re: Quickrunner] #2401125
11/09/17 08:25 PM
11/09/17 08:25 PM
Joined: Oct 2007
Posts: 472
Minnesota, USA
humpty Offline
mopar
humpty  Offline
mopar

Joined: Oct 2007
Posts: 472
Minnesota, USA
I still think the longer segment is the way to go but after talking with Menscer's tech they've convinced me they can make the 20" work. I even gave them the option of the longer spring and they said it's not needed. Since I already own the shocks its just the cost of the valving. I'm looking at the same money to relocate and (re)buy the parts for the springs.

I still plan on mounting the shocks straight up, and maybe move them to the front of the axle.

For the OP - I'd still go with the longer springs. I haven't heard anyone report regretting doing so.

Re: leaf spring front segment [Re: sam64] #2401128
11/09/17 08:31 PM
11/09/17 08:31 PM
Joined: Sep 2005
Posts: 1,550
baldwinsville new york
A
a493demon Offline
pro stock
a493demon  Offline
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Posts: 1,550
baldwinsville new york
I did have menscer do the shocks on mine .
The DA afco's were at the limit .

Re: leaf spring front segment [Re: a493demon] #2401131
11/09/17 08:41 PM
11/09/17 08:41 PM
Joined: Oct 2007
Posts: 472
Minnesota, USA
humpty Offline
mopar
humpty  Offline
mopar

Joined: Oct 2007
Posts: 472
Minnesota, USA
Got it. Are you using the CalTrac bars, Assassin bars or something else?

Re: leaf spring front segment [Re: sam64] #2401137
11/09/17 09:14 PM
11/09/17 09:14 PM
Joined: Sep 2005
Posts: 1,550
baldwinsville new york
A
a493demon Offline
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a493demon  Offline
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Posts: 1,550
baldwinsville new york
cals. took some time but with help from Demon gup over the phone we got it working .

Re: leaf spring front segment [Re: a493demon] #2401221
11/10/17 01:16 AM
11/10/17 01:16 AM
Joined: Oct 2007
Posts: 472
Minnesota, USA
humpty Offline
mopar
humpty  Offline
mopar

Joined: Oct 2007
Posts: 472
Minnesota, USA
Originally Posted By a493demon
cals. took some time but with help from Demon gup over the phone we got it working .


Good to know. Thanks.

Re: leaf spring front segment [Re: a493demon] #2401230
11/10/17 01:27 AM
11/10/17 01:27 AM
Joined: Dec 2013
Posts: 4,651
Wichita
G
GY3 Online content
master
GY3  Online Content
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Joined: Dec 2013
Posts: 4,651
Wichita
Originally Posted By a493demon
I did have menscer do the shocks on mine .
The DA afco's were at the limit .


Was it the extension part you had to work on firming up?


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: leaf spring front segment [Re: a493demon] #2401233
11/10/17 01:29 AM
11/10/17 01:29 AM
Joined: Dec 2013
Posts: 4,651
Wichita
G
GY3 Online content
master
GY3  Online Content
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G

Joined: Dec 2013
Posts: 4,651
Wichita
Can you give some details on your setup?


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: leaf spring front segment [Re: sam64] #2401238
11/10/17 01:38 AM
11/10/17 01:38 AM
Joined: Sep 2005
Posts: 1,550
baldwinsville new york
A
a493demon Offline
pro stock
a493demon  Offline
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Joined: Sep 2005
Posts: 1,550
baldwinsville new york
They changed both settings.
When the car was in the 10's the afco DAs worked good .
Now that it's in the 8s it just over powered the afcos the way they were valved.
71 Demon 540 on nitrous stock front and rear suspension mini tubed springs moved in 3 inches 28x10.5 tire .4.10 gears cope 2nd gear leave trans brake valve body .

22555514_1915833818443793_6485996031545481797_o.jpg
Re: leaf spring front segment [Re: Quickrunner] #2401293
11/10/17 08:26 AM
11/10/17 08:26 AM
Joined: Oct 2015
Posts: 192
Gravataí, RS, Brazil
360tripleblack77 Offline
member
360tripleblack77  Offline
member

Joined: Oct 2015
Posts: 192
Gravataí, RS, Brazil
Guys, I'm really confused with this possibility to change front spring segment lenght.

My concern is about front hangers, I'm using relocation spring kit and can't see how I can move hangers forward as you can see in this example attached.

Pictures will be great!

Thanks

Relocation_Assassin_01.PNG

'77 Brazilian Dodge Charger R/T - Street Car
Footbrake, Pump Gas, SB Mopar 360" N/A
3300lbs, Leaf Spring + Assassin Bars
Best 1/8 mile ET
1.50 60' / 4.31 330' / 6.73@102.54mph
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