33" Nitto Trail-Grappler on 16x8

I figured I would ask around here a little before I get them installed. I've got, as it says in the title, 285/75/r16 Nittos in the mail along with ProComp series 1069 16x8 alloys. I was curious as to what PSI you all would run them at for daily driving. Thanks!

 

I'm interested in this as well...any thoughts? Max is 80psi with a max load, however, I'm running them at 40psi which is what I've seen on other forums.

 

Just do the chalk test and your Taco will let you know how much is just right.

 

Called up the shop which installed my wheels and tires. For the Nittos they recommended 35 - 37psi for onroad daily driving and 40psi if pulling a medium size trailer (which I do every now and then). 80psi is for a huge heavy trailer.

I did notice an improved ride when I increased the psi from 36 to 40.

 

If you add any weight to the truck itself via mods you need higher tire pressure too...a little more PSI for every LB you add to the truck technically. Tire pressure ratings on the truck are ratings for a stock truck at OE weight. I don't know why I see so many other threads where people constantly regurgitate OE PSI specs ? When I ordered some new custom leafs recently we put the truck on a scale and it was a solid 800 lbs over stock weight...front and rear steel bumpers, winch, 35x12.5 wheel/ tire combo and full size 35" spare, lift kit, stereo, Snugtop shell, high lift etc etc...it all adds up quick :/ For me 40 psi is on the low side to maintain a little forgiveness in a range E tire. The chalk test suggested above is a good old school trick and honestly just visual cues like the tread laying as flat as possible with no sidewall bulge. From the photo of your truck I would guess 40 is right ...