[IH Cub Cadet]

I have a chance to buy a nice solid 42 inch deck (triangular type) from a guy that has a wide frame tractor, like a 128. I've got a 126 and my 48 inch deck is OK, but it would be nice to have a back-up and I think this 126 might be a better mower with a 42 inch deck vs a 48 inch.

So my question is - will a wide frame (triangular 38, 42 or 48 inch) deck fit on an older narrow frame tractor?

Thanks!
Bill