Ok, so maybe someone can help clear up my confusion for me here.

My 1990 22RE 4WD came stock with 225/75R-15's (so says the sticker on the door) but it had 31's on it when I bought it. My understanding is that since it came with 225's, it should have the 4.10 gearing and the odometer should read about 10% shy with the 31's. The confusing part is that the odometer reads accurately - I've measured against highway milemarkers and it's dead on over a 100 mile trip.

Does this mean that the gearing was changed when the larger tires were installed? Or is there a way to correct the odometer for the different tire size and leave the gearing the same?

Thanks,

Matt

Many trucks that came stock with 31s, still have the sticker say 225/75R-15s, so that doesn't really mean anything. Look at the same stick and see what the gear code says. That will tell you everything.

Look for this code. If it says G292, like the one below, then your truck came stock with 4.10s and 225/75R-15 tires. If it says G252, then it came stock with 4.56 gears and 31" tires.

Thanks for the info Brian. My truck has G292 listed on the sticker, so it should have the 4.10 gears.

Is there any way to check if the truck has been regeared?

thanks for helping out with my ignorance!

--Matt

I should have known that 4crawler would have a write-up about it somewhere! <img src="/forums/images/graemlins/kewl.gif" alt="" />

Thanks,

Matt

LOL he's got a write up for everything <img src="/forums/images/graemlins/smile.gif" alt="" /> That site is freckin awesome.