LT E 10ply PSI ???

[CND_SuperCrew]

I just swapped out my winter p rated wheels for another set that came with GY Duratrac 10ply. So what are ppl running for PSI for daily use? After some reading I started at 42psi. Thoughts...

Thx

[brulaz]

Grit dog wrote:

...
But you'd keep your fillings in your teeth! 80psi unladen on the back tires of ANY pickup is torture. May as well put flint stone wheels on!

Torture? Seriously, even the wife doesn't complain with the 80psi rears. But we have a cap, and the 8' bed of the truck is always loaded with gear, so maybe that helps. And the RAM 2500 does have rear coils ...

I call the ride with 80psi LT-Es "crisp", and only really notice them when hitting bad potholes. So maybe the roads are better where we drive?

And besides, since we're pretty much always travelling on and off with the trailer, a week here, 2 weeks there, raising and lowering tire pressures would get old pretty fast. And with a RAM 2500, I'd have the TPMS blinking at me much of the time too.

Funny, some folks hate the HD ride but love a Cummin's noise. We don't mind the ride, but would prefer less noise!

[Grit_dog]

brulaz wrote:

Atlee wrote:
The door sticker on my F150 says 55 psi in front and 65 psi in rear. My OEM tires are LT245/75R17 LRE.

I haven't found the need to change then when towing. It pulls my relatively light weight (4990 gvwr) trailer just fine.

These pressures are Ford's recommendation, and what I used when I upgraded from the Ps to LT-E Michelin LTX MS/2s on my 2011 F150. The tires wore evenly and well, with the usual tire rotations, until I sold the truck.

You get used to the crisper ride. Am currently running 60/80 on the new HD truck. If I went back to a softer tire I'd probably think something was wrong.

But you'd keep your fillings in your teeth! 80psi unladen on the back tires of ANY pickup is torture. May as well put flint stone wheels on!

[mowermech]

bguy wrote:
Go by the door sticker. Air up for towing. You're going to think it's a different truck when you do tow.

Keep in mind that the door sticker give the tire pressure for MAXIMUM GAWR/GVWR. If you are not at or near maximum weight, you might want to reduce the pressure for best tire life.

[brulaz]

Atlee wrote:
The door sticker on my F150 says 55 psi in front and 65 psi in rear. My OEM tires are LT245/75R17 LRE.

I haven't found the need to change then when towing. It pulls my relatively light weight (4990 gvwr) trailer just fine.

These pressures are Ford's recommendation, and what I used when I upgraded from the Ps to LT-E Michelin LTX MS/2s on my 2011 F150. The tires wore evenly and well, with the usual tire rotations, until I sold the truck.

You get used to the crisper ride. Am currently running 60/80 on the new HD truck. If I went back to a softer tire I'd probably think something was wrong.

[Grit_dog]

Run them about the same as you would the P tires. They'll ride a little stiffer, but it's the air holding your truck up not the tires.
40 front/ 35 rear is a good start. Lower in the mud or snow.

[Atlee]

The door sticker on my F150 says 55 psi in front and 65 psi in rear. My OEM tires are LT245/75R17 LRE.

I haven't found the need to change then when towing. It pulls my relatively light weight (4990 gvwr) trailer just fine.

[bguy]

Go by the door sticker. Air up for towing. You're going to think it's a different truck when you do tow.

[Dave_H_M]

Are tires now a days (marked on the side wall) how many ever plies??

I am over 7 decades old but have progressed to the load range rating.

you folks confuse me with all that ply stuff. :h

[The_real_wild1]

E rated tires on a 1/2 ton?? I think Id be running 35-40psi max unless towing a heavy load. Once you tow then bump them up.

[mowermech]

GordonThree wrote:
Better than the sidewall (which is max pressure, and will be a hard ride on a half ton), download the weight rating chart from GY. Know your axle weights, and air your tires to meet or exceed that weight. Scale your weights with and without trailer, so you know your towing and empty pressures... or just aim for the higher of the two.

too much pressure results in less than optimal tread <> surface contact, and will lead to uneven wear, just as bad as too little pressure. for example, center tread balding before the edge tread.

There is the best answer I have seen!
The Jeep Wrangler Rubicon used to come from the factory with LT Load Range E tires. The recommended tire pressure was 33 PSI front and rear. When going off road, we would air down to 12 to 15 PSI.
If in doubt about the load charts, do the "Chalk Test".
Go to a hard surface parking lot. Make a series of chalk marks (sidewalk chalk works great) across the tread of your tires. Drive as far as you can, preferably in a straight line. Inspect the chalk marks.
If the marks are worn mostly in the middle of the tread, the TP is too high. Reduce it and try again.
If the marks are worn mostly on the edges of the tread, the TP is too low. Increase it and try again.
If the marks are worn evenly across the tread, the Tire Pressure is just right.

[GordonThree]

Better than the sidewall (which is max pressure, and will be a hard ride on a half ton), download the weight rating chart from GY. Know your axle weights, and air your tires to meet or exceed that weight. Scale your weights with and without trailer, so you know your towing and empty pressures... or just aim for the higher of the two.

too much pressure results in less than optimal tread <> surface contact, and will lead to uneven wear, just as bad as too little pressure. for example, center tread balding before the edge tread.

[Tankcar]

Hi. Look at the side wall it will give you the tire pressure (cold). You can lower it as required.

















'

[GordonThree]

I had 10 ply GY Silent Armor Pro on my old half ton, door sticker said 42 and the ride seemed good.

When towing, I'd run the rears up to 60, it made a noticeable difference just towing my small trailer.

Wasn't impressed with the tread life, these were factory tires. They were shot at 30,000 miles.

Door sticker on my new 2500 says 80 rear, 70 front, still a 10 ply tire. Computer won't let me run them low when I'm empty, it constantly hounds me about tire pressure if I air down.

[JIMNLIN]

My had a '90 model 2500 chevy 5.7 extended cab/long bed that the axles weighed about like the new gen 1/2 ton trucks.
I kept OEM LT245/75-16 E on it and ran 35 psi in the rear and 55 psi in the front when empty which worked out the best long term milage for the trucks axle weights.