Howdy,
I have a 87' 22RE Auto Trans
My rear-end started whining on acceleration. So I assume the pinion and ring gear are bad. 3rd member on this is a 4.30. My question is.. what years are interchangeable? I have read a few different things. more of them say a 22R/RE auto trans from 86-95. I need to find a whole 3rd member as this is my DD and can't afford to have it down.
I have never rebuilt a rear-end before and well I am kinda scared to do it after reading how. So I am sure it would take me sometime to do it.

Thanks

 

I rebuilt mine recently. It's not that bad. having access to a press is nice, but not essential. You will need a dial indicator and some gear paint to measure the mesh.
The front diff was a p.i.t.a. only because you need select fit washers to set the backlash, but the rear diff doesn't need them.
The front/rear pinion bearings take a brunt of the work, so your wear is most likely there, but doing the carrier bearings at the same time is a good idea. You have to pull the axles out enough to drop the third member, so new inner axle seals will be needed.
Quite honestly, the hardest part was the crush sleeve.+
but yes, most likely your vehicle will be down for a few days

 

Good info here__ Erik's Toyota Differential info (4x4wire.com)

 

If your truck is 4wd it should be an 8". So find another 8" Toyota diff with the 4.30 gears. I see them on CL at times and you can try salvage yards. I build my own diffs but it might not be a good idea for you to try in this situation where you need it fixed ASAP. Call around and see how much a shop would charge. Maybe get an exchange one if available. Another site to check out how to build one is Zuk's site. www.toyotagearinstalls.com

Are you sure it's the rear gears? Pull the drain plug and see how the oil looks. Any chunks on the magnet? Lots of metal or looks like metallic paint? If so, I'd stop driving it before it completely fails.

I've had drive shafts sound like I had problems elsewhere like my diff, trans or T-case. Seized or sloppy u-joint? Rear axle bearings usually rumble when they start to fail. Is the pinion nut loose? Leaking pinion seal?

Good luck.

 

www.gearinstalls.com