transmission input-shaft play

[jesusgatos]

Swapping an LDS in my M109, and right now I'm working on getting the transmission and bellhousing. Put about 4,000 miles on mah deuce and never had any transmission-related problems, but noticed that there's a significant amount of play in the input shaft. Maybe close to 1/8" at the tip! Is that normal, or do I need to rip into this thing? Going all-out on the project, but am not inclined to put any more work into the transmission than I need to, mostly because if I keep it, I'll probably end up pulling it back out to rebuild and put one of Tom's 5th gear kits into it. But if there's anything that I really need to address now, I will.

 

[Stan]

Tip of input shaft rides in pilot bearing, this should be ok.

 

[jesusgatos]

Oh yeah, I know. But wasn't sure if that much play was OK or not.

 

[big hoss]

Its fine, but if you do a lot of hwy driving switch your 90w oil to 50w synthetic. 90w dosent get in the oil holes in second gear but 50w will, and it quiets it down alot. The picture below is what happens when you have 90w oil and you travel at 50 alot.

 

[gimpyrobb]

Or you could put in the recommended by the manufacturer 30wt motor oil.

 

[SMOKEWAGON66]

jesus, mine felt just as loose as yours after I rebuilt it with a new input shaft bearing. Im gonna say you will probably be fine

 

[jesusgatos]

Or you could put in the recommended by the manufacturer 30wt motor oil.

Running Amsoil Synthetic Powershift Transmission Fluid SAE 50.

 

[Seth_O]

I had this exact same question when I pulled mine. General consensus was that the movement was normal and acceptable. I put the tranny back in the truck and have put several hundred miles on it since, with no trouble.

http://www.steelsoldiers.com/deuce/60065-wobbly-input-shaft.html