Need help to remove 5th gear from M5OD-R1

[brendank]

Do it on your own. I avoided transmission work for too long because I was slightly intimidated by it's inner workings. After changing out a broken mainshaft in my M5OD, I'm quite glad that I did it myself.

Don't "rebuild" the transmission. Take it apart, and fix whats wrong with it. You're throwing cash away by replacing things that don't need to be replaced. Careful inspection is the key.

Here's some valuable tips given to me by AllanD in a different thread.

A few notes I should make...
1)NEVER mess with the big "torx nut" that is the adjustable pivot
point for the 5th-Rev shift bellcrank.
2)don't disassemble the reverse idler gear from it's shaft, simply unbolt the shaft from the side of the case (the 17mm bolt head on the passenger side of the trans)
3)Don't remove the 5th reverse fork from the guide shaft it rides on.
Remove the bolt that retains the shaft in the case and it slips right out.

AD

I printed that out, and the pdf diagram/parts list of the M5OD in the tech library. It's really sorta simple after that as long as you take your time and don't mix anything up.

 

[Flo Bee]

Do it on your own. I avoided transmission work for too long because I was slightly intimidated by it's inner workings. After changing out a broken mainshaft in my M5OD, I'm quite glad that I did it myself.

Don't "rebuild" the transmission. Take it apart, and fix whats wrong with it. You're throwing cash away by replacing things that don't need to be replaced. Careful inspection is the key.

Here's some valuable tips given to me by AllanD in a different thread.




I printed that out, and the pdf diagram/parts list of the M5OD in the tech library. It's really sorta simple after that as long as you take your time and don't mix anything up.

Thanks for the info. I suppose "freshen" would be a better term than rebuild for what I need to do with my truck's trans. I know it's going to need a little TLC just based on how it feels, and the fact that it's got 155k on it, but it shouldn't be a problem.

I'm a tuner for a living, so I'm used to dealing with race cars and I have a couple friends that build my racing transmissions for customers. Depending on what tools I need to pull it apart, I might lean on them a bit. I suppose I just need to do a little more research by reading through the repair manuals and some forum searches. The goal here being to spend as little as possible since this is just a beater truck. I've just been making economy tuning changes to it for few weeks now and I've really picked up mpg (it's doing better than the EPA ratings) with only four gears, so it just makes sense to get O/D back.

 

[AllanD]

What "controls" the ammount of play in the input shaft is a select fit spacer
that goes into the front bearing retainer between the bearing race and the cover.

This spacer is available from ford in different thicknesses.

I personally have a collection but then again I've disassembled a bunch of transmission that never went back together... some of them I ever intended to reassemble
I bought them purely as "organ donors".

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[nick26]

I actually had exactly the same problem last year... check out the crack in this pic
http://nickdeubert.com/media/pictures/pictures06/11-04-transmission_rebuild/IMG_3866.JPG

For anybody who finds this thread troubleshooting... I ended up buying the new gear, bearings and nuts from http://tbtrans.com/
They are really good guys and had the patience to explain some stuff to me, plus the best price.