The frame is a t, pre 1925. The front axle is model a mounted with a model t spring. The rear axle is model t, cant see the rear brakes so I cant really tell year range. I just scavenged a model t hay wagon for parts as well.
I would only use J and M machine in Southborough Ma. They can take care of all repairs in house, they will make certain the parts being rebuilt will be free of flaws and will keep you involved and informed throughout any work being done with clear pictures and explanations! They are also great...