8n Tranny questions

Hello Forum Chums,
Bought a Tranny years ago....the price was too good to pass up. A
guy was parting out a 48.....got a really tight steering box as also.
Getting to work on the 8n high crop conversion...and the tranny in
it has 2nd gear issues....so.....cover off the replacement tranny ...the gears look
pristine....everything nice and tight....now the bad news.....it had sat
for so long ....throw out bearing would not move......PB blasted my
brains out.....got the fork rod to finally move with a 3 foot pipe
wrench.....oh the fun was just getting started...turns out that this
tranny had an early 48....or late 47 linkage....so had to remove the
fork....you have no idea how stubborn that little pin was to leave its
home...so...ready to split the tractor.....retrieve my newer
linkage...and go to town....finally to the questions.....while
everything is broken down.....any considerations other than to
replace the main front shaft seal??......should I replace anything in
the PTO assembly?...seals or bearings??...any other thoughts or
pitfalls from anyone who has been here??
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if the bearing is good on the pto.. leave it. seals? i repalce them if I can get at them easilly and I don't know their age.
 
If it was mine, I would completely disassemble the trans and check the bearings to make sure none of them are pitted from setting so long! It is really not that much of a job!
 
Follow up.......I know you can get the original clutch resurfaced....but pressure plate.....can they be "gone over"....seems like the original may be better than aftermarket made God knows where.... thoughts??
 
(quoted from post at 20:00:29 07/17/14) Follow up.......I know you can get the original clutch resurfaced....but pressure plate.....can they be "gone over"....seems like the original may be better than aftermarket made God knows where.... thoughts??

You have the parts in hand, so you are the best judge.
Most will recommend replacing everything, and they are right of course. But, I don't like new parts and I'm cheap.
So, if the PP works, with all its springs, fingers, and pivot points intact, with good spring pressure, it gets cleaned up and goes back in. Flywheel too. Time and wirebrushing/sanding.
couple examples, 54 NAA from a fencerow, engine stuck, all clutch components stuck and completely full of nests. mess.
another, 75 loader 5000 with a leaking freezeplug on the back of the block...for years...real mess.
Both got a new clutch disk and throw-out bearing,
all other parts cleaned up at home.
Both work fine now.
Seal leaks? I fix it. If one doesn't leak, you couldn't pay me enough to touch it.....

disclaimer, I'm not an on the clock pro, so my time is free on my stuff,
and splitting doesn't bother me (taking money out of my wallet does), unhook some stuff and take out some bolts and pull it apart and then reverse the process.
It really is that easy, just have to cover all the 'what-ifs' so ya don't get squished.
(that loader equipped 5000 was a bit heavy :) )
If it bites me someday and I have to split twice...so be it.
 

If you have the trans out you could get a general idea of the condition of all the bearings by removing the bearing retainers one at a time looking at the race and the bearing rollers... NO complete disassemble needed... The counter shaft my drop all you would need to do is run a wire around it and pull it up to install the retainers back in place...
 
Hey Hobo,
Saw on another post you had a Sherman for sale.....what is involved
in the install process?....maybe I could find it a new home
 

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