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12-18-2015, 05:43 PM
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#1
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Senior Member
Join Date: Dec 2015
Location: Ocean Isle Beach
Posts: 1,431
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TP & 5ers
New to towing a 5er ~ there is some cushion on vehicle weight according to the sticker on the truck. The sticker states max tire pressure 80# rear and 65# front although they are the same size ~ new truck / new tires. When towing a 5er should tires be at near max?
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12-18-2015, 05:49 PM
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#2
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Senior Member
Join Date: Jul 2014
Location: Nevada
Posts: 2,695
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I always run my LRE rear tires at 80 PSI when towing, which is the max sidewall listed TP. The fronts are usually at 65 PSI regardless of towing or not.
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Desert185 🇺🇸 (Retired Chemtrail vendor)
-Ram 2500 QC, LB, 4x4, Cummins HO/exhaust brake, 6-speed stick.
-Andersen Ultimate 24K 5er Hitch.
-2014 Cougar 326SRX, Maxxis tires w/TPMS, wet bolts, two 6v batts.
-Four Wheel 8' Popup Camper.
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12-18-2015, 07:23 PM
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#3
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Site Team
Join Date: Jun 2009
Location: Venice
Posts: 5,346
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Quote:
Originally Posted by Desert185
I always run my LRE rear tires at 80 PSI when towing, which is the max sidewall listed TP. The fronts are usually at 65 PSI regardless of towing or not.
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X2 ..... same here. Great place to start and then hit the scales and then air up accordingly.
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Hank & Lynn
2007 Cougar 290RKS, E-Z Flex, 16" XPS RIBs ( SOLD .. Gonna miss her ... looking for new 5r)
2004.5 Dodge 2500 QC, LB, 5.9HO, WestTach gauges, Ride-Rite
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12-18-2015, 07:51 PM
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#4
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,203
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I keep mine about 5 psi below sidewall all the time. Too much trouble IMO to remember to change pressures in 6 tires depending on use. But since my truck is towing the vacation home about 90% of the time it's one less thing to do before heading out for fun.
In my case even with the bags at 10 psi, the ride is a little stiff without anything in the bed.
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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12-18-2015, 09:57 PM
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#5
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Senior Member
Join Date: Aug 2013
Location: Oregon
Posts: 783
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What works for me is 80# front and back when towing. The front and back tires wore perfectly-even with 65,000 miles (before replacing) on them towing 98% of the time.
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Jeff & Jan - Retired & Full-timing since 2013
2019 Ram Big Horn 3500 Aisin 4x4
2012 Alpine 3450-RL
Double Coin 235/75R-17.5/16 J rated 125lb
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12-19-2015, 06:02 AM
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#6
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Senior Member
Join Date: Mar 2014
Location: Las Cruces
Posts: 4,665
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I watch my tire wear very closely, I typically run 70 front and 80 rear when towing, 70 front, 65 rear empty. That keeps the tire wear even across the entire face of the tread on my truck. My last set of tires went 85k miles, the current set should go about the same based on current wear.
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Brent
2013 Alpine 3500RE
2019 Silverado 2500HD Duramax
U.S. Air Force Retired (25 yrs)
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12-19-2015, 07:30 AM
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#7
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,772
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To the OP: If you weigh your truck with and without the fifth wheel in tow, you'll find that hitching the fiver will only add about 100 pounds to the front axle (maybe not even that much). With the king pin being "almost directly above the rear axle", all of the trailer weight is pretty much "centered above the rear wheels".
So, I run 70 PSI front both towing and solo and run 65 rear (solo) and 80 rear (towing).
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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12-19-2015, 06:05 PM
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#8
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Senior Member
Join Date: Dec 2015
Location: Ocean Isle Beach
Posts: 1,431
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Thanks for the answers and input. I'll be following your methods!
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12-19-2015, 10:18 PM
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#9
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Senior Member
Join Date: Feb 2010
Location: Taylors, SC
Posts: 3,031
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I've got a Dodge dually with the correct tires on it. Inflated to the tire placard recommendations I'm covered up to and including maximum GVWR. So, I air my tires according to the placard recommendations. Never had a problem.
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12-20-2015, 10:42 AM
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#10
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Senior Member
Join Date: May 2014
Location: Biloxi, MS
Posts: 133
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Quote:
Originally Posted by JRTJH
To the OP: If you weigh your truck with and without the fifth wheel in tow, you'll find that hitching the fiver will only add about 100 pounds to the front axle (maybe not even that much). With the king pin being "almost directly above the rear axle", all of the trailer weight is pretty much "centered above the rear wheels".
So, I run 70 PSI front both towing and solo and run 65 rear (solo) and 80 rear (towing).
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Same here. Truck apparently came with 225/85 R16 placard calls for 70 up front 65 in the back. Currently has 235/85's but. I run the same pressure.
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2014 Alpine 3010 RE.
2007 Chevy 3500DRW, CREW CAB
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