SLOYOTA

Those who have stock 16" rims, what is the specified front & rear tire pressure on the sticker inside the driver's door? My 4runner came with 15" steel rims and 225/75R15 tires but I replaced them with 16" alloys from a '03 Tacoma double cab which has 265/70R16 tires. I would like to know the recommended tire pressure for the 16" rim and tire combo. Thanks.

TDiddy

I have 16" rims on my 4runner, and I assumed they were stock, but when I went out to look, I saw that the sticker lists pressures for 15 in rims....Oh well.

Anyway, I also checked the owner's manual, and for 16" rims with 245/75/16's, rec. pressure is 32psi all around. I'd think that's a safe bet, or at least a good starting point. I'm sure someone else with your setup will chime in.

SLOYOTA

Thanks for the reply Tom. I appreciate the help.

keisur

I may be wrong but I think they come from the factory decked out with the whopping 15 inchers and 225 tires and then the dealer installs and adds options. I think this is true for the Jap made cars anyway because my door jam label says 225...15's also. I wonder how they handle the gearing when they change that stuff, or if they do.

tomus1000

They don't do anything for gearing with the different size tires. Just hope that you didn't get the 15" 225's with 4.11 gears. You might have to rev is a little.

They do however calibrate the speedometer to the tire size. When I started shopping for my Toyota, the dealer had a leftover 4Runner that I was interested in. It had the small tires. The dealer could not swap the 16 inchers onto it becuse it would make the speedo inaccurate.

tomus1000

Oh yea, almost forgot. The tire pressure question.

It's printed on the sidewall of the tire.

A passenger tire is usually 35lbs. per square inch, in a cold tire.

A light truck tire calls for a higher pressure.

dhancali

SO for the gear ratios. If I originally had the 15" with small toyotoa ires and switched those out to 31s, what gear ratio do I need or should go to? A better question, I guess, would be what is the best overall gear ratios to go to? How much?
THanks
David

tomus1000

What gearing do you have now?

keisur

Nope, Mine came stock with the 16 inch alloys and the 265/70 goodyear wrangler a/t's and 4.10 gearing. so it was ok. I will be regearing soon though.

keisur

i would be careful pumping the rears up too high. if you rarely carry a load in the bed then it is best to run the rear tires about 4-5 psi (~26 psi) lower than the fronts because with no load and 32+ psi the tires will sort of balloon and wear on the middle of the tread (assuming no load in the bed). that's what happened to my wife's tacoma so we ran for a couple thousand miles aired about 8psi below the front, which made them run more on the outside edges and evened them back out then started running them 4-5psi below the front and we haven't had any problems since, even with the new (10k miles on them) tires.

trd90toyota

I think that if you run 32-35 psi you should be fine.