I noted this on the Balt. MD Craigslist site and thought I'd pass it along. I am not affiliated with the seller so I have no other details.

https://baltimore.craigslist.org/grd...561900495.html

I do have a 66" 74 blade and love it. This is a heavy duty unit. Mine will fit a 42/43/4400 and 42/43/4410 model tractors.