Tire pressure?

I'm currently running 275/70/18 Nitto Ridge Grapplers and was wondering what a good tire pressure is. When I had them mounted and balanced they filled them to 34lbs each and I thought that seemed a little low. I've read about the chalk test but I was just curious what others were having luck with. Thanks in advance.

 

My 295/70R18 NRG's are definitely low at door sticker PSI. I have them at 47 front/43 back, I used to have them at 42/40 and still looked low but seems to pass chalk in the 40's. I just rotated them, will keep an eye on overall wear pattern.

 

I'm at 30/33 psi on 35's. And every bit of that width is planted on the ground...lol

 

not the same size but my stock 20's I run at the door sticker pressure (49psi) and have never had a problem

 

Same tire and size at 36 but should probably go to about 34. Wear is consistent but inside lugs are wearing just a slight bit more than outside lugs on either side at all four corners.

 

I emailed Nitto and was provided the following. This was based on a 2010 crewmax. I have about 1000 miles on them so far and ride fine.

275/70/18 NRG
38 front
42 Rear

 

Thanks for the replies, much appreciated!