Trans popping out of gear

[Wheelhorse#1 1,963]

Hello all !  

I have a commando 8 with the 4speed manual 5053 trans.

Problem is it will pop out of third gear when under load, all others no issues.

.

 

Any experience on what will cause that? I’ve never taken on of these trans apart but this is a great reason to do and learn .

I flushed and changed the oil recently.

Thanks for your time /Knowledge 

[squonk 47,953]

3RD gear is worn out. Very common. Wheelhorsepartsandmore sells new ones.

 

https://wheelhorsepartsandmore.com/product/3523-3rd-gear/

[Wheelhorse#1 1,963]

4 minutes ago, squonk said:

3RD gear is worn out. Very common. Wheelhorsepartsandmore sells new ones.

 

https://wheelhorsepartsandmore.com/product/3523-3rd-gear/

Thanks Squonk 

Though it might have been something along those lines.

[ri702bill 12,877]

But wait! There's more! Also figure on a new shift boot, 2 qts of 90 weight gear oil,  and case gasket. IF any of the 4 oil seals are even questionable, that is the time to change them.

Ahead of time - see if the hitch pin will come out! It must be removed to be able to split the case.

Once the Unidrive is apart, other pieces inside may be worn  - particularly bearings - that is where it runs into money...

[Achto 32,422]

 

If I have to split a tranny apart, I order a complete bearing and seal kit right away. Buy once, cry once. Figure do it once, do it right. 

 

https://wheelhorsepartsandmore.com/product/base-kit-1-for-manual-transmission/

[wallfish 20,541]

Those 3rd gears get worn from grinding of the gears. Once it's worn enough it will cause that pop out of gear issue. Replacing it is the only fix now.

Somewhere along the line it was being shifted into gear when the clutch wasn't working properly, so it ground down the edges of that gear. 3rd gear barely engages into the other gear which drives it and you will easily see why it will grind down so quickly if you open it up to change it.

[squonk 47,953]

9 minutes ago, Achto said:

 

If I have to split a tranny apart, I order a complete bearing and seal kit right away. Buy once, cry once. Figure do it once, do it right. 

 

https://wheelhorsepartsandmore.com/product/base-kit-1-for-manual-transmission/

And if you don't use all of the parts, save them for the next one or someone else may need them.

[rjg854 13,328]

Mike and I have rebuilt 2 maybe a couple of years ago.  And they can get pricey, depending on what they need. Well worth it though, cause it will last longer than you 

It's really not as difficult as you might think. The worse part is the cleaning.