Check my Math - Tire Pressure by weight..

The wheels on your truck aren't designed for more than 65 PSI. Above that and you risk the wheels failing. The wheels on heavy duty trucks are designed for 80 PSI.

Anytime you run E rated tires on a light weight truck forget all of the printed data. It is all designed around trucks with 10,000 lbs or more GVWR. The number on the sidewall on most E rated tires is 80 PSI. But even the guys running 3/4 and 1 ton trucks typically keep 55-60 PSI in their tires when running empty or lightly loaded. Which is still 1500 lbs more than an empty stock Tacoma. I don't care what the charts say. Somewhere between 30-35 PSI is what worked best for me with E rated tires.

At 6900 lbs you are way overloaded. You need fewer toys or a bigger truck.

 

I roll 30. Why?

 

https://www.tacomaworld.com/threads...ial-crisis-thread.655948/page-9#post-26108252

Suspension points are modified like bamf leaf hangers, marlin lca gussets and archive shock relocation but haven’t gotten to boxing the frame yet. That and i plan a rear shock tower cross brace in the bed and shock tower gussets on front.

I put on 33s i had stacked in my shop area for the trip and it runs great with 4.56 gears. Not much down shifting but I dont push it on the hills. Not in a hurry. I think my cargo slide may be something you dont have that adds a little, and full sliders are 1/4” steel(i see aluminum in my future).. and i am packing rock hounding gear like sledge hammers and such. Its a lot but I baby it. There are a few members in here pushing 7k. Honestly I dont know how you could be at 6k loaded for a trip lol.

If you tldr the details in my build thread, I averaged 12.63mpg..

 

I would go aluminum front and rear bumpers before I went aluminum skids or sliders.

Skids and sliders to me are absolutely the moat critical pieces of armor and that stance is backed up by the visual evidence, my bumpers have a few trail scratches here and there, but my skids and sliders are dented and gouged.

Another reason to avoid aluminum armor is it is more brittle and the weld will break instead of the piece as a whole bending, if winching I would definitely go steel.

Aluminum is also much harder to modify and repair and requires special welding equipment when you can (theoretically) trail fix steel with a coat hanger and a battery.

Lastly aluminum is "grabby" on rough surfaces where steel would rather not self transfer and more happily glides over rocks and obstacles.

Aluminum is lighter and wont rust though so it reaches depends on what you're doing and how often and how much disposable income you got.

33's and 4.56, that makes the difference I guess, I'm 34's and 3.73's because I hate myself.



You a geologist or a a chain ganger or something? What's with the rock bustin' gear?

 

The relationship between load capacity and psi is not linear; more like, non-constant curved slope(s). That formula reeks of the internet.
Not to mention, how volume of tire affects psi requirements. Trucks ride on a volume of air; psi is just a measure of that volume.
Example:
A LT265/75/16 @ 41 psi is equal to a LT285/75/16 @ 35 psi.

If you want to "do the math", you need to use the load charts.
What tire size?