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Old 01-22-2013, 06:22 PM   #1 (permalink)
TigerFan822
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Leveling question

I currently have my stock keys maxed out and am considering getting new torsion keys because my new tires rub. Will I see a difference with new torsion keys since mine are already maxed out?
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Old 01-22-2013, 11:23 PM   #2 (permalink)
j land
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According to Cognito's website....you will not gain any benefit...but in reality I don't know.. I have my stock keys maxed out and the rebound of the suspension in the front is just about maxed out meaning it cant really be jacked up any further without modification such as control arms and longer shocks.
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Old 01-23-2013, 01:24 AM   #3 (permalink)
D_R_C
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Quote:
Originally Posted by TigerFan822 View Post
I currently have my stock keys maxed out and am considering getting new torsion keys because my new tires rub. Will I see a difference with new torsion keys since mine are already maxed out?
You have a 05 so I don't know much about your model.
Check and see how much gap you have on the upper control arm and the stop, they recommend at least 5/8"-3/4"
I went with the Redi Lift leveling kit maxed out on my 3500 HD about 5 years ago, it still was not level
After a couple of years the harsh ride started to bother me, mine only had about 1/4" gap.
Sept 2012 I went with the Cognito UCA's, Pitman/Idler arm support this helped a little giving me about 3/8" gap.
Last week I finally went with the Cognito 4" lift with the "torsion bar drop" kit, this I don't like and would not suggest. Causing IMO a possible clearance issue with the torsion bar dropped. I'm waiting for the parts from Cognito to convert the lift to the Non Torsion bar.
As you can see in the pictures the torsion bars are lower than my amp steps when they are down.
Not good IMO with a 4" lift and having only a 9" clearance.
The ride is much better now having full travel again with the lift and having about 1" gap with the UPA stop.
BTW I have a slightly used Redi Lift leveling kit with shock extension available.
Attached Thumbnails
Leveling question-torsion-drop-1.jpg   Leveling question-torsion-drop.jpg  
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2007.5 GMC Sierra SLT 3500 SRW C.C. 4X4 LMM Z71 - AirDog, Cognito NON Torsion Bar 4" lift, Cognito UCA's, Pitman/Idler arm support, Bilsteins 5100's front/rear
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Last edited by D_R_C; 01-23-2013 at 01:34 AM.
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Old 01-23-2013, 02:32 PM   #4 (permalink)
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Thanks for the replies. I also need suggestions on shocks that won't cost an arm and a leg.
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Dmax
5" Magnaflow w/ no kitty or muffler
285/75/16 Toyo M/T
Gear Alloys
CCM Leveling Kit
Bilstein 5100's
'06+ Tow Mirrors
DDM 8000K HID's
Smoked LED Tails
Autometer Cobalts
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Old 01-23-2013, 02:56 PM   #5 (permalink)
D_R_C
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I like my Bilsteins 5100 series.
Bilstein makes the front shock for the Cognito non torsion bar lift.
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2007.5 GMC Sierra SLT 3500 SRW C.C. 4X4 LMM Z71 - AirDog, Cognito NON Torsion Bar 4" lift, Cognito UCA's, Pitman/Idler arm support, Bilsteins 5100's front/rear
EFILive AutoCal by Idaho Rob @ ATP
http://atptrucks.com/

2007 GMC Yukon Denali "BLACK" 6.2 gasser EFILive AutoCal by MJ Engineering

Last edited by D_R_C; 01-23-2013 at 02:58 PM.
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Old 01-23-2013, 06:27 PM   #6 (permalink)
D_R_C
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Quote:
Originally Posted by TigerFan822 View Post
Thanks for the replies. I also need suggestions on shocks that won't cost an arm and a leg.
Also you might want to verify what length you will need for the front since you have it cranked up before you buy.
Just see what kind of up and down shock travel you have setting level.
You might need to go with a shock that is 2" longer.
On prices I have found them running about $90-$100 each.
I had the 2" shock extensions that came with the leveling kit and ended up having to go with the 2" longer Bilsteins as well when I cranked it up 3 1/2".
New Bilstein Part Number: 24-186735 for the fronts with 0-2.5 lifted heigth.
In fact since I'm changing to the non torsion lift I have to buy new front shocks so I'll have them available as well.
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2007.5 GMC Sierra SLT 3500 SRW C.C. 4X4 LMM Z71 - AirDog, Cognito NON Torsion Bar 4" lift, Cognito UCA's, Pitman/Idler arm support, Bilsteins 5100's front/rear
EFILive AutoCal by Idaho Rob @ ATP
http://atptrucks.com/

2007 GMC Yukon Denali "BLACK" 6.2 gasser EFILive AutoCal by MJ Engineering

Last edited by D_R_C; 01-23-2013 at 06:29 PM.
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Old 01-23-2013, 07:21 PM   #7 (permalink)
TigerFan822
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PM a price.
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'05
Dmax
5" Magnaflow w/ no kitty or muffler
285/75/16 Toyo M/T
Gear Alloys
CCM Leveling Kit
Bilstein 5100's
'06+ Tow Mirrors
DDM 8000K HID's
Smoked LED Tails
Autometer Cobalts
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Old 01-24-2013, 12:18 AM   #8 (permalink)
j land
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I put Rancho's on mine... there was a special with a rebate where you basicly get one shock free after the rebate i got them 2.5 inches longer then stock my torsion bars are all the way up and i have 2 inch tapered blocks in the back. i can fit a finger between the uca and bump stops. I have the Cognito upper control arms to put in ...I blew out my back and needed surgery so I haven't installed them yet but even without them it isn't that harsh and looks decent. Oh the truck is a 2005.
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Old 01-24-2013, 12:41 PM   #9 (permalink)
D_R_C
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I think you will like the UCA's they give you a little more gap on the stop and they have a cusion instead of metal to metal.
On mine the ride was ok in general but when I hit a dip and/or speed it was pretty rough.
The UCA's did help and now with the 4" lift the ride is just like it was when new.
I did test drive a new 2012 3500 4X4 last week and mine now rides just as good.
Actually a little better because GM increased the GCVW with a little stiffer suspension along with a little better frame construction.
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2007.5 GMC Sierra SLT 3500 SRW C.C. 4X4 LMM Z71 - AirDog, Cognito NON Torsion Bar 4" lift, Cognito UCA's, Pitman/Idler arm support, Bilsteins 5100's front/rear
EFILive AutoCal by Idaho Rob @ ATP
http://atptrucks.com/

2007 GMC Yukon Denali "BLACK" 6.2 gasser EFILive AutoCal by MJ Engineering
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