I did a search on Snapper 1855 transmission but found nothing related to my needs. If this duplicates someone elses post then I apologize.
I have a Snapper 1855A with what I fear is a failing hydro. It has always had an issue where if you're going downhill it would almost run away and then the hydro would "get a grip" and it would slow back down. This winter I tried using it several times and it just wouldn't move. When it did it was jerky and the pedal actually seemed to push back. After it warmed up it seemed okay.
I happen to have the transaxle from a Ford LGT17 I'd kept after scrapping the rest of the tractor. All appearances are they are basically the same. The major difference is that the Ford was offset and one axle is longer than the other. My first thought was to swap the axles and housings but it appears there is a clip that holds the axles into the diff gear and I'd have to crack the tranny apart. My other option is to pull the hydro from the transaxle to swap them.
My desire is to get the opinions of the people in the know as to which route to take and gather any other info people are willing to part with.
My thanks to everyone!