I just bought a set of 2009 OEM 20" wheels with stock Goodyear Wrangler LT305/60R20 tires. What are the recommended tire pressures on the H2? The sidewall states 50 psi max, but I would think Hummer recommends less. I don't know anyone with a 2009 to check their door jamb for the recommendations. Thank you if you can help me. Did a search, but nada. This is the wheel and tire.

 

This photo shows how different the 17" and 20" look.

 

Look in your door jam should be the same regardless of the rim and tire size, I believe it 32psi. If it doesn't say on the door then check you owners manual. The new tires look great.

 

Thanks DTS, generally as with other vehicles I own, pressures were different with different profile tires, I would think it would be true here too. My door jamb says 37 psi for 70 series, these are 60 series. I am looking for someone who has a 2009 who can look on the door jamb for the actual printed recommendation. I have a call into the Hummer dealer's service dept. I'll post it if no one else steps in to help.

 

The 20 looks much better than the 17 on yours. Good choice. As for the printed recommendation on a 09 I don't know the answer but it's certainly less than the 50 written on the sidewall. 35 is probably just about right and will give you a good ride and good wear until you find the technically correct answer.

 

Hi this is for your new 20" tires its 42 psi cold, Nice rims!!

 

Thanks Limoguy, I think they look better too. I've been looking for a set for a year, finally someone locally upgraded to 24's and sold me all five 20's for a fair price! I do miss the meaty tires on the 17's. The 17's I had were the limited edition 2007 wheels, so I liked them too.
Tracy, you are the shizzle! That's exactly what I was looking for. I had 45 psi in them, now I know the facts. I appreciate the picture and the time you took to do it.

 

Hi Fred, glad i could help!

 

I have a 2008 and it says 42 PSI on the door as well.