Here is the thread where I made tools to take apart my H55f. The puller for the input shaft, and a bearing puller with long legs was all that was needed. The rest of it was a hammer and brass drift sort of thing.
https://forum.ih8mud.com/60-series-wagons/469197-h55f-disassembly-home-made-sst.html
https://forum.ih8mud.com/60-series-wagons/469197-h55f-disassembly-home-made-sst.html