mistyg7

So I am rebuilding my rear on my 1991 Toyota pickup 4wd v6. The ring and pinion got delivered today and it is slightly the wrong ratio . The ones I took out were 4.1 and the new ring and pinion ratio is 4.3. Can anyone tell me if I could just use the 4.3 and if so what would be the difference or effects of doing so. I also put 31" tires on when I rebuilt the truck not sure if that matters or not. Any feed back would be great thanks!

Punchy

Matters a lot, You will bind and blow parts, Send them back.

dropzone

iTrader: (6)

how did you determine it was the wrong ratio? Count the ring gear teeth and divide by the pinion teeth?

Punchy is correct...the f/r ratios need to be the same or you will bind like a .....

Yotard

Gears absolutely have to match front to rear otherwise you will destroy your transfer case.

JasonYota

iTrader: (1)

I wouldn't say all that. It will bind up but it's only 4.10 and 4.30's. Long term, get matching gear ratios.
I've ran different gear ratios and/or different tire sizes front to back, binds like crazy buts never broke anything. This was using 4wd only when it was absolutely needed until proper gears and/or tire sizes could be matched.

mistyg7

Thanks a lot I should have double checked counting the number of teeth when ordering. Got a new one on the way