Identity of Model T chassis

[SILETZ]

Greetings,

I purchased an old sheep wagon from Montana. The original wagon was replaced at some time with a Model T chassis. It has wood spoke wheels with 21" X 4.50" tires. Both the front and rear leaf springs run in the direction of the frame rails. Wheel base measures 103". All of the "T" imagery I look at show transverse leaf springs front and rear. How do I indentify the build of this chassis?

Siletz