Mystery parts found inside M50D-R1 transmission.

[xuout1]

Finally got my under carriage pressure washed, truck put on the rack and transmission pulled out. When I opened up the trans I discovered the synchro collar for reverse and 5th gear was rounded off and should be a easy fix but what has me worried is the two small pins I found laying on the work bench after I rolled it over. They are .156 in diameter. One is just over 1/2" long and the other just under 1/2". The exploded view doesn't show any needle bearing rollers this size. What are they ?

 

[Transman304]

Those look like shifter lockout pins or detent pins. Did you remove any parts off the shifter cover?

 

[xuout1]

Those look like shifter lockout pins or detent pins. Did you remove any parts off the shifter cover?

I did remove the button sensor on the drivers side of the cover that has the long pin under it. Unless those were stacked up behind it.

 

[xuout1]

Chasing down part numbers for anything that looks like the pins I found and came across this. He has one of the pins that I found and never figured out where it goes ether. https://www.ford-trucks.com/forums/1489365-m5od-top-cover-replacement.html

 

[adsm08]

They look like detent pins, possibly from the 5/R assembly.

 

[xuout1]

The center shift rods use short fat pins and the 5th/rev use a ball and spring. Ends are slightly rounded on the mystery pins so that rules out roller bearing.

 

[adsm08]

I have one am tearing apart once I have the money to rebuild it, I will find them when I do. I will not be able to find this thread by then.

 

[xuout1]

I will have it back in the truck in one or two weeks. Will give a update when I do.

 

[xuout1]

Finally got my under carriage pressure washed, truck put on the rack and transmission pulled out. When I opened up the trans I discovered the synchro collar for reverse and 5th gear was rounded off and should be a easy fix but what has me worried is the two small pins I found laying on the work bench after I rolled it over. They are .156 in diameter. One is just over 1/2" long and the other just under 1/2". The exploded view doesn't show any needle bearing rollers this size. What are they ?

Update. Transmission back in with just replacing a gear slip ring and broken synchro dog springs. Trans works great so far and mysterious extra parts are still setting on my work bench.