All attachments for F900 series and F1145s are interchangeable EXCEPT for the pto shafts. You are correct the F1145s need shorter shafts.

 

Its hard to say without seeing. I know a deck from 1445 won't fit. The 935 has the gear box offset to the left and the 1445 was centered. Also the angles on the arms was different. I don't know if an 1145 uses the old 935 style or the newer style.

Please post up when you find out. I'd like to know as well. I need a new deck for my 932.

 

So I took a stab at putting the 72" mower deck on the F1145, no immediate success. Bathe arms line up good with the hydraulic lift, the deck aligns well with the machine, but the pto shaft is to long. Even swapping pto shafts from each deck will not help. This is why F1145 deck gearboxes are closer to the top of the deck as compared to F900 series decks. A shorter pto shaft by 4"-6" may do the trick. Currently the shortest shaft, that I have is approximately 26" from yoke to yoke, compressed. I will keep you posted. Thanks

 

need different shafts.... it will work to anyone reading this post now.