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Converting Kubota G4200 Manual to Hydrostatic

3391 Views 4 Replies 3 Participants Last post by  greencruiser
I have a G4200 stick I've owned for 23 years & now have the opportunity to convert it to hydrostat. I need a little advise from you Kubota experts. I picked up a G6200H less the engine & from the best I can tell all I need to convert is either the propeller shaft for a 4200H or lengthen the existing shafts. Kubota list different part #s for the stick & hydro. Looks like the frame rails are pre drilled for either model & all of the extra mounts are in the right location. My plan is to take the differential from the 6200H & use the 4200 frame as the 6200 is a little on the rough side. Can anyone confirm my thoughts? Any advise?
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Thanks Volfandt,

I had the same idea with the shaft. It tapers down from the spline back so I figured I could turn the center down smooth & straight & make a coupling to extend it if necessary. I set the 2 tractors side by side today & can see I will have to mount my 2 cyl on the 6200 frame due to the way the hydro mounts. Looks like all of the mounting holes are there for my engine & radiator. Just need to transfer over some other components that are rusted away on the 6200. I might have to make this a winter project.
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