The Deere parts web site shows AM30832 and AM30833 as being the draft arms on all 34" mower decks. I have three 34" decks. The draft arms on the brass-tag deck that supposedly came off a model 60 tractor are about 1/2" longer than are the draft arms on the decks that I got with model 70 and 100 tractors. What gives? I'd think the difference in draft arm lengths would also make a difference in engine-to-mower drive belts, but again the parts site shows the same drive belt for all 34" decks.