I picked up a Kubota B1750 that is missing the complete 3 PT hitch assembly. I've been looking at this one on flea-bay:
http://www.ebay.com/itm/KUBOTA-COMPACT-TRACTOR-CAT-1-3-Point-Linkage-Hitch-Kit-/140830794031
I'm wondering if this one will work? The specs say the lower lift arms are 19.68 "...