Hello! I think this might be my first post here; long-time lurker.

Truck is an '85 Pickup SR5 w/ 22re, 4x4, and W56 5spd transmission. Rebuilt motor has less than 20k miles on it, however the transmission is original and hasn't been touched as far as I know. Odometer is ~444k kms (270k mi). This is an occasional DD with 33x10.5 BFG KO2s, and I wheel with 33x12.5 mud tires. Would like to bump the mud tires up to 35/36 bias ply eventually. 5.29 gears and dual lockers. Stock transfer gears.

A few weeks ago I noticed a sound developing from the transmission that's slowly worsening. There's a whirring sound akin to new diff gears coming from the tranny in all gears except 4th (counter-shaft?) as well as neutral. Sound stops when clutch is disengaged (pedal down). No sound in 4th gear or idling with the clutch pedal depressed.

A friend of a friend will have a cheap transmission for me in a week, although unknown condition. Regardless of what I do I think I'll pick this up, rebuild the better one of the two, and keep the 2nd as a spare.

Here's my parts list so far:
-W56 rebuild kit w/ Nachi & Koyo bearings
-SKF 62012RSJ pilot bearing
-SKF N3064 release bearing
-SKF 6306VSP1 output shaft bearing
-OE rear main seal & gaskets from Toyota. (What are these gaskets called? Not sure what to ask for.)
-Do I need snap rings to shim the gears? Is there a pack of these I can get from Toyota?

I'd appreciate some input from those with more experience than I have. Does my parts list look correct? Anything I'm missing or should do when the tranny is out? Any useful tips & tricks? Should I replace everything on the list? According to answers in similar posts, some swear these symptoms indicate the clutch is at fault. This doesn't seem right to me, but idk. Could this be clutch related? I'd like to do this once and not worry about it for another decade. I'll be doing the work with a friend in a heated shop with a press.

Thanks for looking!

 

I've spoken with @Jimkola a bit about this, and he suggested getting input from @wallytoo and @old87yota .

Thanks in advance for any knowledge shared 🤘

 

I’d guess the transmission has been overhauled at least once, maybe twice. 100k was about ballpark average on the bearings.
Theres no assembled collection of snap rings. You buy specific ones, and won’t know what you need until you get there during assembly.
Toyota synchros are pretty durable. If the grooves on the inside of the synchro are still in good shape, allowing the synchro to float on the hub, they should be fine.
clutch? No, it’s not the cause. But is good time to replace if it’s somewhat old.

 

Here’s an exploded view of the gears, bearings, rings etc
I aso included one of the case showing the gaskets.
this is for a 87-88 w56

 

at 270k miles, the transmission could be original. my 2nd '87 4runner, w/w-56 transmission, went 248k before i replaced it with a rebuilt marlin crawler version. on my 1st '87 4runner, the original transmission is still going along at 217k miles.

once you rebuild whichever you choose, i'd use redline mt-90 for the lubricant. it made difference in my unrebuilt transmission (less noise), and i used it in the rebuilt marlin crawler unit. i would echo jim and say use oem bearings if possible - you might never need to replace them again if you do.

 

Already have MT-90 in it. I agree!

 

Nachi and Koyo are good bearings. Looks like you got or are getting good parts. I've only rebuilt a couple W56's, a R151F and R150F.

PAY ATTENTION to little things like the detent balls, springs and pins. Especially in the shifting linkage. A small magnet comes in handy. TAKE PICTURES. Have a clean catch pan under it while taking it apart. Lay the parts out in the order they come off. Be consistent to how you lay them out as far as what side up, forward or back side. TAKE MORE PICS. If you run into a delay and need to wait days or weeks for parts you can forget how things went. You will have to fab up tools to press your parts. Just mainly tube or pipe welded to plate type tools. Holding fixture.

Maybe you already know this?? Just offering suggestions in case you don't. Good luck with it and don't forget to have fun.

 

I was surprised how much quieter Redline made my transmission and diffs. Very noticeable.
God bless my iphone. i referenced my photos a few times. Especially with the shift forks. I love magnets for keeping things together in the tray or cup. especially detent balls and springs.
200k+ on original bearings? Damn.
I had just a basic puller set. i used threaded rod to extend the jaws to get 1-2 bearings off that were pretty deep. Pressing the bearing on was much easier. I think i just used sch 40 pvc pipe that was a bit longer than the shaft.
I do have this Toyota Tool set. 90316-60010. I'd be willing to send to a member I trust, just have to cover shipping both ways. But in all honesty, it's not really needed.

 

We'll be doing this on a Saturday & Sunday, about an hour from the nearest Toyota dealer. Is there an issue reusing the snap rings? They're already the ideal sizes for each gear and don't seem like something that would wear out.

 

I never had to get any for the ones I did. Good luck with your rebuild.

 

probable on my 2nd '87 (now with 264k). definite on my 1st '87 (at 217k) - purchased with 97k, and i'm still driving it - changed the fluid about 2 years ago.

 

Hmm, I've got a little over 200k on my original tranny. It currently has just synthetic gear oil in it, but this thread has me thinking about putting in that redline.

 

The various thicknesses of snap rings probably has more to do with compensating for slight variations in thickness of bearings, gears, etc. during manufacture.
I reused most of mine. One was just too thin for my liking.