Case 580D gear problem

jerbucc

New User
I have 580D 1977-78 with a shuttle shift. When I started after a month of not being used there was a whining/grinding noise. I tried to move it but it just grinded more, so I shut it down. I checked the gear oil and it was empty(must have leaked out because checked it a few months ago and was full, I only used it maybe an hour since then). I filled it with gear oil. It was a little milky, so apparently there was some water inside it. When I started it the grinding noise disappeared with the shuttle shifter in neutral but when I put it in 1st gear it just grinds in forward or reverse, but doesn't move. It moves forward and reverse in 3d and 4th gear, The H pattern shifter never allowed me to put it in 2nd gear so I don't know about 2nd.
Two questions, what is involved to replace the 1st gear that is probably chewed up, and why can't I get it into 2nd gear. I don't use it for work just on my property occasionally. If it's too difficult or expensive I'll just move it around in 2nd or 3d gear.
Thanks in advance.
 
Sounds like you have a shift fork issue, 1st and 2nd use the same fork,, to check/repair all you have to do is remove the 4 speed shifter/cover,, removing a fork is a bit more in depth but not a super hard job,, I would pull that and post back with pics of it if you do not see the problem right off, if the shifter boot is bad that is one place you can be getting water in the transmission
cnt
 
(quoted from post at 05:04:04 12/02/19) Sounds like you have a shift fork issue, 1st and 2nd use the same fork,, to check/repair all you have to do is remove the 4 speed shifter/cover,, removing a fork is a bit more in depth but not a super hard job,, I would pull that and post back with pics of it if you do not see the problem right off, if the shifter boot is bad that is one place you can be getting water in the transmission
cnt

Thanks- I will look into that when it's a bit warmer here. I assume this reply is for the question of not being able to get it into 2nd, but also very concerned about the 1st gear grinding problem.
 
It was for both 1st and 2nd gear issues,, you may have a gear out in 1st yes but where it will not shift into 2nd it just as easy can be a shift fork problem,bent/broken ect causing Both issues,, I have seen it happen before
 
Okay- Thanks. I normally never touch the shifter and just leave it in first as I have no requirement to go fast. I probably wont get to that until spring though.
Thanks Again
 

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