Rick,
I had two 1800's. A 68 and a 71. The trouble is, I bought them both
in the late 70's, so the possibility of them having an original
transmission still in them is about nil. However, both trucks were gone
from my ownership by the mid 80's. IH is alot like Willys, however.
The same parts are used for a long production time. I think this
particular transmission was a Clark. Many manufacturers of trucks use
the Clark. Chevrolet and GMC single axle of around 2 1/2 ton rated.
Ron
