these decks are all from the Simplicity Sunrunner models but labelled Deutz Allis, I still have enough parts to build one more machine but I have 4 decks, 2@42" and 2@48", they roll on 2 casters at the front and rollers full width at the back so there is just 2 arms that would need to attach to the tractor and of course the belt... Ive actually never been impressed with the big wheel Case models, and this is now the 5th one Ive had.... even this Sears I just sold would easily outpull a 448... they ride very nice and they are capable enough for any basic yard chores but they dont pull worth crap IMO. Every GT I bring home gets tested by pulling harrows, the same ones Ive pulled with the Columbia for about 10 yrs.... Case 4xx, JD3xx, Allis Chalmers 9xx... MTD990/995 all top out with 3 sets at full throttle... an mtd960 does that at 1/3 throttle and 4 sets at full throttle.... a 960 is not a nice tractor to ride/operate... but when it comes to grunt work... well lets just say Ive got that covered.... now a Case with a Simplicity mower deck... that might make for a pretty sweet machine.