I had the same tires you do when I first got my truck and the rears wore out a little more in the middle when they were at 52 instead of 48 because the rear end is so much lighter than the front.
The front tires wore evenly.

Just park on pavement and look at the tires with the pressure you have now to see if the tread is sitting flat on the ground or if it's off the ground a little bit on the sides or if it's squatting on the outside edge of the tread.

You could do the chalk test too where you scrub chalk on the tread all the way across then move forward to make the tires do a couple revolutions and look at the chalk mark on the ground to see if the chalk that was left on the ground is just barely there on the edges of the tires or if it's heavy all the way across.

Those tires have a 3 ply sidewall and 65psi max pressure so they can handle a little more pressure than a lot of tires. 52/48 works on my truck for even wear across the tread.

 

sounds good sheriff, thanks for the tips! I think I'll play around with them a bit and see what works best. I'm more interested in treadwear than ride comfort, is is an old truck after all

 

Ya'll are still using air filled tires?
Time to step up to nitrogen. Works alot better than air cause you never lose pressure, (never once have I lost 1psi w/ nitrogen filled on my Nitto TG's) The tread wears more evenly and extends the life of the tire. I also heard you gain minimal MPG

I used to build stores called 'Rimtyme' and we installed nitrogen lines for their tire shop. Kind of a high-end wheel/tire store. Majority of tire shops today still don't use nitrogen because it is alot more expensive.

 

well I checked em today, he put 40 pounds in them, not 35 that he told me, AND he never replaced my valve stems, which I asked for and paid for..... What a tool lol

 

I would be there tomarow morning asking for my valve stems.

Bigslick I have heard good things about nitro in tires but Im not carrying around a tank of nitro to fill up tires when they gets nails or, if I air down to offroad, plus its more expensive to have to go to a shop when i got compressed air at home for free.

And Im a little different I put less in the front tires than the rear so that I have enough traction in the rain, I have different tires but I run the front at 45 and the rears at 50, that ways theres plenty of air if I need to tow something, and I keep a minicompressor in my truck, I will air down to 30 or lower when off road to keep the ride smoother

 

i have 10 ply tires and run 40 in all 4. theyre all wearing evenly.

 

It all boils down to the weight of the truck and brand of the tires when it comes to pressure. Some tires have a really stiff sidewall so you can air down and not have a lot of flex in the sidewall (meaning the outside edges will wear too fast). Some tires have a really soft sidewall so if you air down it will eat the edges up for sure. You mainly want to find the pressure that will make the tires wear evenly.
Lower pressure will give a softer ride but can wear out the outside edges of the tires if you go too low.
Higher pressure will help with mileage (less rolling resistance) but can eat out the center of the tread and give a stiff ride.

 

My tires are 78% nitrogen filled.

(hint: air is 78% nitrogen )