Help with proper tire pressure

[BuckeyeFan75]

Hello all, new to the group and figured this is the best place to get my answer...
Have a 2020 Built to Serve 5.7 Hemi that had stock 275/55/20 tires. Just upgraded to Predator New Mutant X/RT 33x11.5xR20LT. I have used the tire pressure calculator which shows I should now run 50 PSI. Seems high to me. I checked with the manufacturer and could not find anything. Currently I am running 37 PSI in them. Just looking for some input so I don't have uneven wear. Thanks

 

[mplaramie]

Welcome! Try the chalk test. It will get you to the correct PSI.

Also, make sure to have your TPMS set properly for the new tire PSI.

 

[Redz72]

Toy around with the PSI that feels most comfortable for your driving style as well. I run 39PSI in my LT285/65r20’s currently. I do prefer a firmer ride tho

 

[Alejandro_Andretti]

I run 40 psi year round with 285/65/20 if you want a smoother ride you go slightly lower. If you’re towing you’d go higher.. I wouldn’t go below 30 unless off roading

 

[Scram1500]

I used the tire pressure calculator and it was way off. My tires were over inflated, wearing in the center and had lousy traction. I think the tire pressure calculator is assuming the truck is at full payload. I keep the front at 40ish and rear at 30ish for daily driving

 

[HSKR R/T]

Every truck/owner is going to be different. Based in options and driving style. I currently run 32 rear and 37 front on my 35x12.5r20 Radar Renegade AT-Pro. On the stock Falken WildPeaks I was running 45 front and 40 rear because it rode better and had better tread wear than the factory specs. I have not done the chalk test, but I do look at the dirt on tread when I pull into my garage to see where the line is in the tread