Stock wheel question

[Ramfancy]

Hi All,

I apologize if this has been covered. I did look for quite a while.

I have the stock aluminum 18” wheels that came on my 22 Laramie 1500. I was thinking of buying E load rating tires and was wondering if there is a psi max rating on the wheels? Is it 80 or less?

Thanks in advance for any advice.

 

[Bt10]

You’re not gonna want 80 psi? You can’t load enough to need that. I have the same, I run 35 for the ride. When I towed, I might go to 50 on the rears. There are charts and formulas to determine what you need. 80 is the max for the tire, not what your particular vehicle needs.

 

[Ramfancy]

You’re not gonna want 80 psi? You can’t load enough to need that. I have the same, I run 35 for the ride. When I towed, I might go to 50 on the rears. There are charts and formulas to determine what you need. 80 is the max for the tire, not what your particular vehicle needs.

I do understand that. I just do not want to put too much pressure for the aluminum wheel. I normally ran 50-70 in my previous ram when loaded. It just depended on how big of a load I had.

 

[LaxDfns15]

You're gonna blow a tire before you do any damage to an aluminum rim with tire pressure.

 

[Ramfancy]

You're gonna blow a tire before you do any damage to an aluminum rim with tire pressure.

That’s what I thought, but I had 2 friends tell me that I need to check because the rims are aluminum instead of steel….

 

[LaxDfns15]

That’s what I thought, but I had 2 friends tell me that I need to check because the rims are aluminum instead of steel….

I know it's not the same, but I have aluminum wheels that I use while training on my triathlon bike. I regularly put those tires at 120-140 psi for extended periods of time. The failure point will most likely be the valve stem if it's not the tire. If you're going to run pressure that high I'd suggest staying in the 70 psi range. I've personally never done more than 60, and that was only when hauling a pallet of sod in the bed for a short trip.

 

[scottmoyer]

Did you put the full pallet of sod in the truck at one time? I was supposed to get a pallet today and I requested they split it in two loads so I don't overload the truck. They said a full pallet of St Augustine weighs about 2200#.

 

[Ramfancy]

Did you put the full pallet of sod in the truck at one time? I was supposed to get a pallet today and I requested they split it in two loads so I don't overload the truck. They said a full pallet of St Augustine weighs about 2200#.

that’s a big load. I have been guilty of putting about that much weight in my old ram for a very short drive. I’m sure it is tough on the truck. I wouldn’t go far….

 

[LaxDfns15]

Did you put the full pallet of sod in the truck at one time? I was supposed to get a pallet today and I requested they split it in two loads so I don't overload the truck. They said a full pallet of St Augustine weighs about 2200#.

Yep. Full pallet of Zoysia sod. Not recommended, definitely overweight, but I didn't have my trailer at the time. I do have airbags to lift the rear, and it was less than 2 miles of 30mph roads. Immediately unloaded it when I got home to get the weight off the truck.

 

[boogielander]

just fill it to what the sticker on the door says unless you're upsizing the tire.
if you do, run chalk test, then adjust accordingly. after that, change the tire pressure threshold with alfaobd so your truck won't scream at you for running lower psi.

 

[HSKR R/T]

That’s what I thought, but I had 2 friends tell me that I need to check because the rims are aluminum instead of steel….

Might want to find smarter friends