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05-13-2018, 04:03 PM
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#1
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Name: Mazak
Title: Diesel Enthusiast
Status: Not Here
Join Date: Jul 2017
Location: SW Ohio
Member`s Gallery
Posts: 230
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front spring upgrade ?
I have a 06 4x4 QCSB which has a leveling kit on it.
I want to return to stock height (or less) to reverse level it.
Is there a "better" spring than OEM ? Maybe softer ?
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05-13-2018, 09:26 PM
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#2
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Name: 1stgensleeper
Title: Too Much Time
Status: Not Here
Join Date: Jul 2012
Location: Modesto, California
Member`s Gallery
Posts: 773
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I too have always wondered this. I know thuren has "soft ride" coils but only in 2" and 3" lift heights according to their website. Let us know if you find anything.
__________________
2006 QCLB 4x4 manual vb 47re, Savage Fab He351, exergy 100% overs, flo pro 5" exhaust
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05-13-2018, 09:51 PM
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#3
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Name: okie18
Title: Too Much Time
Status: Not Here
Join Date: Jan 2009
Location: Leon, OK
Member`s Gallery
Posts: 996
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Thuren has 1/2" lift coils that's not listed on his website.
Sent from my SAMSUNG-SM-G890A using Tapatalk
__________________
2014 2500 Longhorn HPP tuned
04 2500 RCLB 4x4 Smarty UDC, AD 150, Fletcher Cam & Springs, Steed Speed, Thuren, Exergy 60%, Firepunk Comp 3, Anarchy Dual Cp3's, 467 fmw, 861/1427 930 on spray
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05-14-2018, 08:16 AM
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#4
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Name: ramthiscummins
Title: Too Much Time
Status: Not Here
Join Date: Sep 2010
Location: Canada EH!
Member`s Gallery
Posts: 589
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I asked thuren if he sells a spring that is lower height and he said no
__________________
2003 QCSB cummins, DDP 12mm CP3, DDP SM 150% overs, a turbo, Firepunk diesel 48re
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05-14-2018, 09:56 AM
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#5
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Name: Mazak
Title: Diesel Enthusiast
Status: Not Here
Join Date: Jul 2017
Location: SW Ohio
Member`s Gallery
Posts: 230
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Quote:
Originally Posted by okie18
Thuren has 1/2" lift coils that's not listed on his website.
Sent from my SAMSUNG-SM-G890A using Tapatalk
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So this is not true ? Or
There is nothing less than 1/2 ?
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05-14-2018, 12:41 PM
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#6
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Name: okie18
Title: Too Much Time
Status: Not Here
Join Date: Jan 2009
Location: Leon, OK
Member`s Gallery
Posts: 996
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Hmm... I've got them on my 04 so he must have quit getting them made.
Sent from my SAMSUNG-SM-G890A using Tapatalk
__________________
2014 2500 Longhorn HPP tuned
04 2500 RCLB 4x4 Smarty UDC, AD 150, Fletcher Cam & Springs, Steed Speed, Thuren, Exergy 60%, Firepunk Comp 3, Anarchy Dual Cp3's, 467 fmw, 861/1427 930 on spray
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05-15-2018, 08:02 PM
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#7
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Name: Mazak
Title: Diesel Enthusiast
Status: Not Here
Join Date: Jul 2017
Location: SW Ohio
Member`s Gallery
Posts: 230
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Geez , I have been googling and can't even find a stock part #. Moog does not have one ......
Anyone have a part # for a stock one ?
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05-15-2018, 08:48 PM
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#8
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Name: 95cummins5.9
Title: Old man ***** gossiper
Status: Not Here
Join Date: Jun 2012
Location: U.S.A
Member`s Gallery
Posts: 4,715
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Why not just run a 1500 spring, softer , ride lower, oem.
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05-15-2018, 09:36 PM
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#9
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Name: Justappumped24v
Title: Too Much Time
Status: Not Here
Join Date: Feb 2016
Location: Illinois
Member`s Gallery
Posts: 1,311
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Quote:
Originally Posted by 95cummins5.9
Why not just run a 1500 spring, softer , ride lower, oem.
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I have never had good luck with that they sway a lot
__________________
05 QCSB24v HTD 6.8L, DDP fueling PDD shifted
2011 MCSB 6.7, built 68rfe
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05-15-2018, 10:35 PM
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#10
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Name: Red Sleeper
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Lone Star State
Member`s Gallery
Posts: 4,583
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I have a set of factory front coil springs from a 05 QCSB 4wd that we’re removed at 70k. I can work someone a deal being they are taking up space in the shop.
Might even have a factory part number on them still. I can verify if need be.
__________________
Nick J
'14 Silverado LTZ 5.3 4wd
'05 Cummins QCSB 4wd 48re
'91 Cummins w350 5spd
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05-16-2018, 08:19 AM
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#11
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Name: CorneliusRox
Title: Seasoned Rookie
Status: Not Here
Join Date: Dec 2012
Location: Detroit, MI
Member`s Gallery
Posts: 4,154
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I have tried 1500 springs and power wagon springs with no luck.
I bet some 2500 gasser springs would be closer.
The thing with springs you'll have to remember is, they get stiffer when you reduce coils. If you just chop one of your coils off, you might not like the ride quality.
You could do some homework, find out the stock diesel spring rate, find out the stock 1500 spring rate, and then see how many coils you'd need to remove from the 1500 to match it. Then build a coil spacer for the difference if you wanted height back.
There's also plenty of places that'll make you springs to your liking, they're just pricey.
One more thing, on my 97, I went to much stiffer springs in an attempt to make it handle better. It did definitely handle turning events better (on ramps, fast maneuvers, hard braking), but holy cow did it turn the truck into an uncomfortable driver.
__________________
Corey - BSME '21 Tesla Model 3 Perf
'22 DMax AT4 2500
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05-16-2018, 08:25 AM
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#12
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Name: Mazak
Title: Diesel Enthusiast
Status: Not Here
Join Date: Jul 2017
Location: SW Ohio
Member`s Gallery
Posts: 230
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Quote:
Originally Posted by CorneliusRox
I have tried 1500 springs and power wagon springs with no luck.
I bet some 2500 gasser springs would be closer.
The thing with springs you'll have to remember is, they get stiffer when you reduce coils. If you just chop one of your coils off, you might not like the ride quality.
You could do some homework, find out the stock diesel spring rate, find out the stock 1500 spring rate, and then see how many coils you'd need to remove from the 1500 to match it. Then build a coil spacer for the difference if you wanted height back.
There's also plenty of places that'll make you springs to your liking, they're just pricey.
One more thing, on my 97, I went to much stiffer springs in an attempt to make it handle better. It did definitely handle turning events better (on ramps, fast maneuvers, hard braking), but holy cow did it turn the truck into an uncomfortable driver.
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Thanks for the info.
What are the names of a couple places that will make the coils ?
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05-16-2018, 11:22 AM
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#13
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Name: CorneliusRox
Title: Seasoned Rookie
Status: Not Here
Join Date: Dec 2012
Location: Detroit, MI
Member`s Gallery
Posts: 4,154
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Quote:
Originally Posted by Mazak
Thanks for the info.
What are the names of a couple places that will make the coils ?
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Peterson Fluid Systems is an option.
You should measure the OD you need, understand the weight, and then do the math to understand the height and spring rate to have your ride height where you want it and stiffness. Then you can take those specs and have springs made.
Typically if you're just buying custom springs, you'll get OD, unsprung height, and spring rate.
__________________
Corey - BSME '21 Tesla Model 3 Perf
'22 DMax AT4 2500
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05-16-2018, 02:43 PM
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#14
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Name: ramthiscummins
Title: Too Much Time
Status: Not Here
Join Date: Sep 2010
Location: Canada EH!
Member`s Gallery
Posts: 589
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Quote:
Originally Posted by Mazak
So this is not true ? Or
There is nothing less than 1/2 ?
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I believe to achieve 1/2" of lift you can buy his 2500 hemi coils that lift a hemi 2" but I am not 100 % correct on that.
I specifically asked if he makes lowering springs. His response was no.
__________________
2003 QCSB cummins, DDP 12mm CP3, DDP SM 150% overs, a turbo, Firepunk diesel 48re
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05-19-2018, 08:00 PM
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#15
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Name: Mazak
Title: Diesel Enthusiast
Status: Not Here
Join Date: Jul 2017
Location: SW Ohio
Member`s Gallery
Posts: 230
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Found out there are 7 , yes seven , different springs for the 2500 4x4 with a cummins .
Going to have some custom ones made 1" lower than stock.
Had to call a dealer and give them my vin to determine which spring came on my truck so the shop could determine how to make spring
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