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Old 08-19-2016, 01:41 PM   #1
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Hey 3/4ton drivers: What's your airbag PSI?

My TV is 2015 2500HD GMC that I installed Firestone Airbags on in prep for towing my Wildcat's 1900# pin weight. What I've learned is I probably didn't even need the airbags. The 2500HD is plenty capable without them...but I have them now.

When towing I'll keep them at a minimum 10 to 20 psi until I hit a stretch of bad highway (think Shreveport I-20). Then I'll use the wireless compressor and pump them up to about 40psi (seems to help). But is that enough?

I've seen messages over time where others talk about running their bags at 50,60 even 90 or 100 psi. Granted some of these have heavier pin weights, some have put them on 1/2 tons trying to handle greater pin weights.

What I'm interested in with this posting is to hear from the 3/4ton drivers that like me have airbags. What's your psi?
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Old 08-19-2016, 02:55 PM   #2
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I run mine at about 40-50 lbs. Pin weight about 2200
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Old 08-19-2016, 03:34 PM   #3
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I have a Wildcat 327 ck and I tow it with an 2011
F250, CC, longbed, diesel and I don't have airbags.
I have no sag.
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Old 08-19-2016, 04:34 PM   #4
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I have a 8289WS. No airbags, no sag. Truck and RV are close to level after a 3" lift on the RV. Previous truck was a Tundra with Firestone airbags @ 30psi with the same RV.
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Old 08-19-2016, 04:56 PM   #5
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hbillsmith
what is the payload capacity of your 3/4T?
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Old 08-19-2016, 05:32 PM   #6
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Empty bags are at 5, towing 20-25.


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Old 08-19-2016, 06:01 PM   #7
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See my sig...I run 15-20 psi towing. In fact, I just leave it there since I only drive 2 miles round trip to work each day. I played around a lot with pressures and actually found that anything over 20 had a detrimental effect on towing comfort.
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Old 08-19-2016, 06:25 PM   #8
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In installed Timbrens and towing a 9000 # tt loaded with equalizer wdh works great. No sag Timbrens also control bounce and sway . Later RJD
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Old 08-19-2016, 06:37 PM   #9
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Quote:
Originally Posted by wbdvt View Post
hbillsmith
what is the payload capacity of your 3/4T?
Truck sticker is 2,515# but I've CAT scaled it and with passengers, fuel and a generator in the bed I'm only left with 1,997# available for pin weight. According to my latest CAT I'm using 1,905# of that. Now I leave the 85# genny at home unless I'm heading out to dry camp.
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Old 08-19-2016, 06:46 PM   #10
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I have a 2016 F250 6.2 3.73 SB CC Lariat, my TT is a Flagstaff 27BEWS Ultra Lite.
I am considering some air bags for my TV, so I am looking over the fence at this thread for some info. Sometimes a bad spot on the highway can send a jolt all the way through the cab and up my spine when towing. So air bags may be the ticket for a smoother ride.
The only concern that I have is that some post on the subject suggest that the air bags cancel out the automatic anti-sway controls (with competing motion offered by the air bags, I guess?)
Anybody know the real reason and if it is true?
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Old 08-19-2016, 07:10 PM   #11
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Quote:
Originally Posted by Wheels Down View Post
I have a 2016 F250 6.2 3.73 SB CC Lariat, my TT is a Flagstaff 27BEWS Ultra Lite.
I am considering some air bags for my TV, so I am looking over the fence at this thread for some info. Sometimes a bad spot on the highway can send a jolt all the way through the cab and up my spine when towing. So air bags may be the ticket for a smoother ride.
The only concern that I have is that some post on the subject suggest that the air bags cancel out the automatic anti-sway controls (with competing motion offered by the air bags, I guess?)
Anybody know the real reason and if it is true?
I don't think you will see any benefit from airbags on a 250 pulling an ultrahigh TT. With a heavy fifth wheel, maybe. I'm not sure you even need a wdh, sway control though yes
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Old 08-19-2016, 07:19 PM   #12
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Quote:
Originally Posted by aceinspp View Post
In installed Timbrens and towing a 9000 # tt loaded with equalizer wdh works great. No sag Timbrens also control bounce and sway . Later RJD
Timbrens control bounce AND sway . news to me . didn't think they could even improve a ride let a lone help with sway .
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Old 08-19-2016, 08:09 PM   #13
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hbillsmith,
I have the heavy Equalizer WDH and that helps a lot with sway.
The trailer weighs around 7800# loaded. I know I am well within limits for payload,tongue weight and TT for this TV.
Just looking for something to take the sting out of some nasty sections of highway. Thought air bags maybe the answer. If not what is, more pillows?

Thanks,RMc
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Old 08-20-2016, 12:42 PM   #14
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No psi will be right for everyone. Add air til bed rails are level.
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Old 08-20-2016, 08:32 PM   #15
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I have an F-250 towing a 40 ft Crusader I keep my air bags at 20 psi and they haven't bottomed out the suspension yet When empty I run around 10+15 psi
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Old 08-21-2016, 09:50 AM   #16
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What I did to determine my proper air pressure for my air bags, is as follows. Place truck on a level surface without a load in the truck or camper attached. Measure bumper height from road surface, in my case top of bumper; save this dimension. Now attach the camper to the truck and add air to the airbags up to this measurement. This is about how much air pressure you will need in the airbags to level your truck. You may want to +/- this air pressure by 5 or 10 PSI to improve ride when loaded.
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Old 08-22-2016, 10:38 AM   #17
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I had to play with it for a while to get the best ride with the least amount of bounce. I have a 2500 Dodge short bed,pull a 28' Grey Wolf, with a 3000 Honda Gen mounted on the tongue of the TT and about 300lbs of gear in the bed of my pick-up. I found the best ride for me is 12lbs of air. If I load 800lbs of motorcycle I raise it to 16lbs.
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Old 08-22-2016, 07:09 PM   #18
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when i had my 2500HD i had bigwig air bags pulling a wildcat at 1900 pin weight also, i put 15 to 18 psi when pulling to stable up the rear and that would lift it off the overloads, and it helped a lot with the cross wind roll also,
drop down to 5 psi when not towing
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Old 08-22-2016, 07:13 PM   #19
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My 2016 F250 did not sag even though the pin weight put it very near max payload. The bed only dropped 3/4" with 2100# pin dropped in.
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Old 08-22-2016, 07:15 PM   #20
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I hadn't planned on adding bags, the truck squat some with the load but looked level and drove okay.

However, I weighed the trailer and found 600lb difference between front and rear axles, with the front being the heaviest. The trailer was sitting a little nose down and I was able to raise my hitch two holes to compensate to even out the difference between the two axles.

A trip to the scales to see if there's a difference in axle weights.
A fully loaded truck and trailer may require more air than empty.
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