Case 580c shift forks

[Torin]

hi i have a 580c that I just had the differential rebuilt in had both of the covers pulled to seal them up and for the life of me I can't seem to get the gears and shift forks lined up properly to where it works properly. What might I be missing? Thanks

 

[Tinkerer]

Did you have the mainshaft and or countershaft out of it ? Or did you have the fork and cover assembly apart ?
Is this what you are working with ?

 

[Torin]

That's it the top plate is off and the shifter is out of it now too. The forks are still attached to the plate

 

[Tinkerer]

The forks will drop right down into the synchronizer grooves when you get them lined up correctly. # 18 is one of the synchronizers. You will need to take a bar and move the position of the synchronizers. Then the shifting rod will drop in. Look carefully at the forks in the first photo I posted. You can see the grooves on top of them that have to be lined up before the shifting rod will drop in correctly.

 

[Torin]

I've been able to drop it down on them but it doesn't shift through right. I had it right once and thought I had pulled it off careful enough to put a bead of sealant down but it had moved. What position do I need to set it to?

 

[Tinkerer]

Neutral usually. You can slide the shift lever sideways back and forth when you get it right. I prefer to take the pin out of the shift rod and remove it from the cover. Put the cover on and if the fork grooves are lined up, drop the lever in and replace the retaining pin.

 

[alrman]

hi i have a 580c that I just had the differential rebuilt in had both of the covers pulled to seal them up and for the life of me I can't seem to get the gears and shift forks lined up properly to where it works properly. What might I be missing? Thanks

Sometimes you need to turn the input shaft by hand while attempting the gear change. Just to get things lined up.
Just assuming you might not have, as fitting the top cover is usually pretty straight forward.