Wheelhorse#1 1,965 #1 Posted 4 hours ago 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 Share this post Link to post Share on other sites
squonk 47,955 #2 Posted 4 hours ago 3RD gear is worn out. Very common. Wheelhorsepartsandmore sells new ones. https://wheelhorsepartsandmore.com/product/3523-3rd-gear/ 3 Share this post Link to post Share on other sites
Wheelhorse#1 1,965 #3 Posted 3 hours ago 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. Share this post Link to post Share on other sites
ri702bill 12,877 #4 Posted 3 hours ago 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... Share this post Link to post Share on other sites
Achto 32,422 #5 Posted 2 hours ago 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/ 2 2 Share this post Link to post Share on other sites
wallfish 20,541 #6 Posted 2 hours ago 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. 3 Share this post Link to post Share on other sites
squonk 47,955 #7 Posted 2 hours ago 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. 1 Share this post Link to post Share on other sites
rjg854 13,329 #8 Posted 2 hours ago 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. 2 Share this post Link to post Share on other sites
WHX?? 57,865 #9 Posted 11 minutes ago (edited) 2 hours ago, wallfish said: grinding of the gears. Can't find em grind em... I'll take a pound... 2 hours ago, rjg854 said: the worse part is the cleaning Got that right ... Edited 11 minutes ago by WHX?? Share this post Link to post Share on other sites
