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Front tire pressure 3500 4x4

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This 4x4 stuff is new to me, never owned one before. I have been running 65 in the front but I noticed the outside edges of the tire were getting "sharp". Truck rides great at 65 but after reading the door jam and everyone's replies they now have 75 in them. As hot as it is in Texas right now they should easily hit 80 after a few miles.

Thanks everyone for your comments.
 
I'm looking at getting the AT3 XLT's next month.

If you live where it snows, I would recommend something different. Unless they are vastly improved over the previous AT3. Have owned a handful of sets on various rigs. Work at 8,000 feet where you drive on snow at least half the year.
 
Don't take this the wrong way but without a tire size these numbers mean nothing. a 265/70-17@50psi has a load rating of 2470lb while a 295/70-18@50psi has a load rating of 3000lb. You would need to drop the 295/70-18 to 40psi to have the same load rating with the two tires.

Said by a guy that owns a 20006 futuristic vehicle.

"20006 3500 QCLB 4x4. EFI, Garret Stage 2, F&R True Tracs, 295/70-18 Toyo AT2, 2018 3500 CCLB 4x4, stock for now"

Makes your 2018 look pretty old.
 
Said by a guy that owns a 20006 futuristic vehicle.

"20006 3500 QCLB 4x4. EFI, Garret Stage 2, F&R True Tracs, 295/70-18 Toyo AT2, 2018 3500 CCLB 4x4, stock for now"

Makes your 2018 look pretty old.

Nuclear powered at that. Gets 10M miles to the ounce. ;)
Fixed. Thanks.
 
If you live where it snows, I would recommend something different. Unless they are vastly improved over the previous AT3. Have owned a handful of sets on various rigs. Work at 8,000 feet where you drive on snow at least half the year.

AT3's and AT3 XLT's are 2 different tires.

I've read nothing but great reports out of the XLT's.
 
If you live where it snows, I would recommend something different. Unless they are vastly improved over the previous AT3. Have owned a handful of sets on various rigs. Work at 8,000 feet where you drive on snow at least half the year.

Wanted to come back and update this.

The AT3 XLT's in 275/70R18 are now severe snow rated, 3PMSF. The Duratrac's are not 3PMSF rated in 275/70R18. Not sure why Duratrac excludes that size, but it's the only exclusion according to their website.

I had the XLT's installed last week and they look like they will be a great snow tire, but I won't know for a bit... maybe next month while hunting.
 
Wanted to come back and update this.

The AT3 XLT's in 275/70R18 are now severe snow rated, 3PMSF. The Duratrac's are not 3PMSF rated in 275/70R18. Not sure why Duratrac excludes that size, but it's the only exclusion according to their website.

I had the XLT's installed last week and they look like they will be a great snow tire, but I won't know for a bit... maybe next month while hunting.

So I was looking at my tires last night, and wouldn't you know it there is the 3p designation on it! In my research back in May I never found anything that stated they were, and looking last night again at Cooper's website they still have not added that certification in the description. Same with Tire Rack and Discount Tire. It's strange, you would think they would want this info out there for prospective buyers. It would have made my decision alot less painful!
 
So I was looking at my tires last night, and wouldn't you know it there is the 3p designation on it! In my research back in May I never found anything that stated they were, and looking last night again at Cooper's website they still have not added that certification in the description. Same with Tire Rack and Discount Tire. It's strange, you would think they would want this info out there for prospective buyers. It would have made my decision alot less painful!

I think they are waiting to test the rest of the sizes this winter to advertise the 3PMSF for the tire.

My decision was made before seeing the 3PMSF, but it certainly helped reinforce it.
 
Ironman are made by Cooper for I believe Hercules. I have a set on my 5th wheel, they seem like good quality for the price.
 
How much air pressure do you run in your front tires (original size) on your 3500 4x4?
Back to the OP, I learned a lesson years ago with my 94 2500, it came with E rated Goodyears. Due to the harsh ride at the proper inflation, I lowered the pressure to smooth out the ride at all 4 corners. I had to replace them due to cracking at the wheel just above the bead. I was told it was from under inflation, that overly creased that point in the tires. I keep them 5 psi under the door data plate when unloaded, and when at the max weight loaded I increase it back to the rated pressure. Smooth rides can cost alot of money sometimes, I wont do it again. I just looked at the door data plate, and its 80 rear 60 front, thats a change I believe from the 80/80 when at the rated max load, tires have 80 psi for the tires max load.
 
There are no negative consequences of running your tires at lower pressures while unloaded.

Exactly.

Proper air pressure has nothing to do with door placard or sidewall pressure, rather it has everything to do with how much weight is on the tire.

Underinflated is less pressure than required, and overinflated is more pressure than required... that's it. Both have negative aspects to them, thou underinflated is worse.

The only tires, that I am aware of, that have rather high minimum pressures are tires that run on X.5" rims due to the way the bead seats. On the 19.5's I ran on my 05 70 psi was the minimum I could run in them, regardless of the weight. The single ply metal sidewalls also don't like to flex like LT tires.

But since most of us are running 17-20" LT tires there is no negative drawback to reducing air pressure when unloaded to what the weight charts call for.

I like this chart as it's all inclusive of sizes, there are even sizes in there that Toyo doesn't make to show that it's size specific and not brand specific.

https://www.toyotires.com/media/2125/application_of_load_inflation_tables_20170203.pdf
 
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98 12V 4x4 I ran 72 front and around 40 rear and would get 100-120k with 3rd gen take off Michelins and BFG's. I left the fronts the same when towing and would raise rears to the chart plus 5psi.
 
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