Towing camper w/ bigger wheels/tires

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Crazyro

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Hey peeps. I just replaced my stock 17s with stock 18s off a 2500 (275/70/18). Max PSI on these is 80 (cold). What should I run them at when towing? I have a 32 footer weighing in at around 5,000 lbs. Right now I'm running them at 50 and ride is great w/ out towing anything. What say you? Much appreciated.
 
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Bloody_Knuckles

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With a 5000 lb trailer, tongue weight should be somewhere between 9-15% (450 and 750 lbs) of gross trailer weight. 50 psi should be good for that weight.
 

Marley

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I tow 50 psi with 35" Dynapro and 5k trailer.
Be curious to know the GVWR of that 32ft trailer.
 

Spoonsize

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With a 2003, 2500, I tow with 70 in the front and 80 in the rear. The majority of my towing is at highway speed. I believe the higher psi provide for better milage and longer tire life milage wise.
 
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Crazyro

Crazyro

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I tow 50 psi with 35" Dynapro and 5k trailer.
Be curious to know the GVWR of that 32ft trailer.

Dry weight (I know, useless) is around 4,500 (ultra light). I'd say fully loaded (we don't carry water with us) would be around 5,500. I think I'm going to try 55 in front and 65 in rear and see what happens. I ran my 17s at 50 front and 60 rear and that seemed to be the best balance between daily driving and towing.
 

MikeT

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I take the advise of the tire manufacturer. They print the recommended inflation right on the tire. Mine are 10 ply, I inflate to 80 psi all around for towing and run 65 - 70 unloaded.

Mike
 

Marley

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My E rated 35" Dynapro's say 65lb max.

Chalk test shows....non towing.
47# front
43# rear

Tow at 50# 5000lb trailer.
Ram 2500 QC.

Every application will vary depending on tire and load.
 

justin13703

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I take the advise of the tire manufacturer. They print the recommended inflation right on the tire. Mine are 10 ply, I inflate to 80 psi all around for towing and run 65 - 70 unloaded.

Mike
I’ve never seen a tire with recommended pressure on it because that depends on the vehicle. Tires have the MAX psi printed on them. This isn’t a recommendation, this is them saying if you put more pressure than this in here, they can explode. A lot of people think that the max pressure on the sidewall is what the tire needs to be run at and that’s not exactly true.
 

MikeT

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If you read what it says on the tire, you will see that the a statement something like what is on my Nitto Terra Grapplers. "Max load 3750lbs at 80psi" that is the recommended pressure for running the tires at max load. You can run the tires at lower pressure with lower load but if you max out the load and run less than that pressure you run the risk of tire failure do to excessive heat built-up and you will certainly reduce the distance the tires will last.

Mike
 

moezer

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I’ve never seen a tire with recommended pressure on it because that depends on the vehicle. Tires have the MAX psi printed on them. This isn’t a recommendation, this is them saying if you put more pressure than this in here, they can explode. A lot of people think that the max pressure on the sidewall is what the tire needs to be run at and that’s not exactly true.
Yep ur right, on my camper wheels it states max psi is 50 psi, I run them 35psi with heat build up I'm sure they stay below 50 psi I run my tires 35psi or 40 psi max rate I think on them is 60

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