Rearend overhaul

[IBCRUSN]

I am planning on overhauling my rearend while I am in there doing brakes. I was curious if anyone has a parts listing for the rear axle? I am looking for the P/N's for the gaskets, seals and bearings. I checked out Chris' site which has some great pics but no P/N's. I hope you guys can point me in the right direction before I head to the dealer. Thanks much.

Kris

 

[RavenTai]

Exactly how deep are you going? "Overhaul" sounds like a complete disassembly including pulling the 3rd member ring and pinion etc, or do you want to do the much more common wheel bearing repack and associated seals?

Either way CruiserDan can tell you what you will need and get a good price on Toyota parts

 

[IBCRUSN]

At this time the third member will stay in. I intend to clean and replace the wheel bearings and seals. It will need brakes soon and the parking brake pivots are corroded so I guess it's an overhaul from the hubs out.

Kris

 

[IdahoDoug]

Cdan. Otherwise you'll pay too much and get the wrong parts.

DougM

 

[Safado]

2 sets of bearings...same as the front
2 inner seals
2 hub seals
2 gaskets
And most importantly the SST in Chris's write up. It's impossible to do it right without it or something similar.

I just did it last week and it was all pretty easy. I can't find my parts list, but if you call CDAN he'll have them memorized and can ship them fast. Any reason you're replacing the bearings? Are they making noise or bad? If you have factory lockers...make sure to lock them before pulling the axle shafts.

 

[DRTDuck]

A coupld of places have the SST. OTC has them, I got mine from OTC via the local NAPA was about $25. Easily a one banana job.

 

[Rookie2]

Any reason you're replacing the bearings? Are they making noise or bad? If you have factory lockers...make sure to lock them before pulling the axle shafts.

Educates me some here... we all know that the front overhaul is a necessary PM because of the Birfield, broken seals mixing gear lube/grease etc.. But if you're not replacing the wheel bearings as a PM, what's the primary purpose of the rear axle overhaul? In otherwords, what can potentially go wrong here if it's not done, assuming you would notice gear oil spewing if the axle seal were leaking?

Thanks,
Rookie2

 

[RavenTai]

The main goal is the bearings you can repack them with grease or replace, I replaced mine I could have probably just repacked them with fresh grease,

If the bearings go bad weather it be from old worn out grease than can no longer protect, contamination with water or dirt or abuse or poor adjustment or just plain old age, they can seize on the inner race, the rotation now occurs between the inner race and the spindle instead of in the bearing cutting a groove in the spindle, the spindle is part of the axle housing not replaceable on its own

 

[Beowulf]

>> make sure to lock them before pulling the axle shafts <<

Note to birf repack author: This step needs adding to Jim's write-up.

>> assuming you would notice gear oil spewing if the axle seal were leaking? <<

On the FF axle you will not see gear oil spewing when the rear seals are leaking. On mine, there was ZERO grease remaining in the wheel bearings and the hub cavity. The only rear bearing lubrication on mine was from gear oil passing by the axle tube seal. Clean-up was real easy though.

For those that are putting off the rear axle service.... Don't. You need to look in there and see what's going on.

-B-

 

[IBCRUSN]

I am replacing the bearings for GP and the PO's dealer was lax on maintenance. If I have it all apart then find out that I have a bad bearing I'll be ever so slightly pissed. I'd rather have new parts handy just in case. I'm not certain as to when I'll be performing this maintenance as living in an apartment doesn't lend itself to driveway MX.

Kris

 

[RavenTai]

If you buy the bearings for the rear and do not use them they can be used in the front later, all 4 corners take the same bearings on 80's with ABS (and therefore full floating rear axle) AutoZone has Timken’s for a reasonable price, some Pepboys have Koyo's Dan can get you either through Toyota

 

[cruiserdan]

Rear wheel bearing seals: 90311-62002 x2
Rear axle tube seals: 90310-35001 x2 (90310-36003 if the shaft is a late style REPLACEMENT shaft)
Flange gaskets: 43422-60040 x2
Bearings, Koyo: 90368-45087-77 x2 and 90368-49084-77 x2
Bearings, Timkin: 90080-36064 x2 and 90080-36067 x2