Duramax Diesels Forum Truck of the Week
  #1  
Old 10-03-2017, 08:44 AM
goodie454 goodie454 is offline
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Default 2500hd with air lift 5000 bags

Ive got 5000#bags on my sierra with air lifts auto leveling system. My toy hauler has a 3500 king pin weight and i just put a pressure gauge inline to just see what i am getting hooked up. 130psi. Safty valve will blow off when i hit a good size bump or dip. Question is how do i reduce that psi. I see max reccomended psi is 100 An add a leaf? Or just jump to their 7500# bags?
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Truck 1 05 lly ccsb Chevy summit white color matched everything
Duramaxtuner dsp5 efi live
S&B full intake
3" mbrp down pipe
5" mbrp exaust
Pro fab tow flow up pipes lml drivers
Manifold
Head studs
Ported and polished stock turbo with a batmowheel.
Full pro-fab egr delete with LBZ you bridge
LBZ intake runners
MA welded water pump
MA motor mounts
MA t case bace and pump rub
Airdog 165 lift pump
05 dodge aam 9.25 front axle trussed and 4 linked on king Coilovers
4.56 gears
Deaver springs king bypasses out back
37x12.50r20 toyo mt

Truck 2 05 lly ccsb Gmc summit white
4" mbrp straight pipe coated black
Afe blade runner
285 duratracs
Cognito leveling kit with fox 2.0 shocks
Reese elite 18k slider 5th wheel hitch
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  #2  
Old 10-04-2017, 12:41 AM
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LBZ LBZ is offline
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Not sure if you're running an ccsb or ecsb or cclb or what year etc. but If you're putting 3500 lbs of king pin weight on your 2500hd truck your way over payload capacity and probably axles as well not including passengers and other cargo. You should really be looking at a 1 ton srw to stay legal.

If you don't care about that then yes upgrade to the 7500's. 130 psi is too much for those bags.

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  #3  
Old 10-04-2017, 01:00 AM
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gmduramax gmduramax is offline
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Are you trying to keep the ride height too high? What if you adjust the auto level system so the rear end sits 1.5" lower?
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  #4  
Old 10-04-2017, 03:48 AM
036.6turbo 036.6turbo is offline
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My pin weight is 2,500#. (by my math)

I have AirLift 5000 on mine.

I run 80 psi in the bags to keep the truck level while towing.
Not sure if that helps, but to jump from where I'm at not to add another 1,000# to my pin? I would need to do something very different to my set up.

This weight ticket is from the 2003 truck, I have yet, to scale (or pull the RV with) the 2015, but I installed AirLift 5000s on that as well. I would think my pin weight would be very similar.
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2003 GMC Sierra CCSB.
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  #5  
Old 10-04-2017, 04:57 AM
goodie454 goodie454 is offline
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05 Ccsb lly. I set it up so it would have 10lbs in in unloded as per instructions i could lower it an inch and see what i get. Ive only goy a 4 +1 leaf in the back. Buying a differnt truck is out of the question lol
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Truck 1 05 lly ccsb Chevy summit white color matched everything
Duramaxtuner dsp5 efi live
S&B full intake
3" mbrp down pipe
5" mbrp exaust
Pro fab tow flow up pipes lml drivers
Manifold
Head studs
Ported and polished stock turbo with a batmowheel.
Full pro-fab egr delete with LBZ you bridge
LBZ intake runners
MA welded water pump
MA motor mounts
MA t case bace and pump rub
Airdog 165 lift pump
05 dodge aam 9.25 front axle trussed and 4 linked on king Coilovers
4.56 gears
Deaver springs king bypasses out back
37x12.50r20 toyo mt

Truck 2 05 lly ccsb Gmc summit white
4" mbrp straight pipe coated black
Afe blade runner
285 duratracs
Cognito leveling kit with fox 2.0 shocks
Reese elite 18k slider 5th wheel hitch
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  #6  
Old 10-04-2017, 07:50 AM
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trashygasman trashygasman is online now
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I have the same air lift setup on my truck and also have it adjusted where it has 5-10 psi when empty. I have to readjust the sensor some when I hook my fifth wheel up to where it is around 75 psi. If not mine would be over 100 also. I’m not sure what my pin wt is but it’s nothing near 3500#.
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2006 White Silverado LBZ, CC/SB 4x4
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  #7  
Old 10-04-2017, 08:20 AM
goodie454 goodie454 is offline
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Correction its 3100# but its still up there. Anyone think if i do an add a leaf it will lighten the load on the bags? Dont really want to move the sensor around a bunch
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Truck 1 05 lly ccsb Chevy summit white color matched everything
Duramaxtuner dsp5 efi live
S&B full intake
3" mbrp down pipe
5" mbrp exaust
Pro fab tow flow up pipes lml drivers
Manifold
Head studs
Ported and polished stock turbo with a batmowheel.
Full pro-fab egr delete with LBZ you bridge
LBZ intake runners
MA welded water pump
MA motor mounts
MA t case bace and pump rub
Airdog 165 lift pump
05 dodge aam 9.25 front axle trussed and 4 linked on king Coilovers
4.56 gears
Deaver springs king bypasses out back
37x12.50r20 toyo mt

Truck 2 05 lly ccsb Gmc summit white
4" mbrp straight pipe coated black
Afe blade runner
285 duratracs
Cognito leveling kit with fox 2.0 shocks
Reese elite 18k slider 5th wheel hitch
Reply With Quote
  #8  
Old 10-04-2017, 09:57 AM
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trashygasman trashygasman is online now
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I only have to move it about 1/2”. Once I figured out where it needs to be it’s an easy adjustment. Hook up the trailer, slide it down. Unhook, and slide it back up.
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2006 White Silverado LBZ, CC/SB 4x4
EFILive by JoshH, MBRP, S&B, Transgo Jr., AirDog 150, ProFab EGR Delete & Downpipe
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  #9  
Old 10-04-2017, 10:11 AM
goodie454 goodie454 is offline
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Thats not bad at all ill have to play around with that next time i hook up to it
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Truck 1 05 lly ccsb Chevy summit white color matched everything
Duramaxtuner dsp5 efi live
S&B full intake
3" mbrp down pipe
5" mbrp exaust
Pro fab tow flow up pipes lml drivers
Manifold
Head studs
Ported and polished stock turbo with a batmowheel.
Full pro-fab egr delete with LBZ you bridge
LBZ intake runners
MA welded water pump
MA motor mounts
MA t case bace and pump rub
Airdog 165 lift pump
05 dodge aam 9.25 front axle trussed and 4 linked on king Coilovers
4.56 gears
Deaver springs king bypasses out back
37x12.50r20 toyo mt

Truck 2 05 lly ccsb Gmc summit white
4" mbrp straight pipe coated black
Afe blade runner
285 duratracs
Cognito leveling kit with fox 2.0 shocks
Reese elite 18k slider 5th wheel hitch
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