Deuce transmission woes

[Andyrv6av8r]

I just started working on the 2nd of my two newly aquired dueces this past weekend and found out that it won't shift into reverse or first; like it's locked out. The stick comes over against the spring pressure but I can't get it to move forward or backwards into either gear. The others are fine. Any ideas anyone? Thanks ahead of time.

 

[bratpackdad]

Shift linkage bushings? or Transfer case linkage not lubed?

 

[badgmc56]

The first and reverse gear is a sliding gear. Remove the top cover and make sure the gear is not seized to the mainshaft.

 

[stumps]

Every M35A2 has a rod that comes out of the back of the transmission. Back in the early days, that rod was used in the sprag transfer case to set the correct direction for travel. Its purpose kind of faded when the M35A2's were all converted from sprag transfer cases to the air shift style.

The unfortunate part is this shaft is sticking out of the back of the transmission, and has no protection from the elements. If it is all rusted up, it could be stuck preventing the transmission from shifting in the first-neutral-reverse gate.

-Chuck

 

[m16ty]

Chuck, that's kind of what I was thinking.

The rod could be bent or (if it still has a sprag case) there could be a problem with the t-case or linkage between it and the trans.

 

[Crazyguyla]

I had the same problem with my deuce not shifting. I took off the top cover and found the gear the gear was seazed.. used liberal penetrator spray and a mallet to free the gear. Oil might be contaminated too.

 

[ptg530C]

I would try all of those and if none work change the trans. Easy job.

 

[Andyrv6av8r]

Thanks for the info and I'll look at it this evening. The truck had been sitting for a long time and could have some corrosion quite easily. It sure started without any effort to my surprise and runs like a top.