RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
I've even taken old 5g buckets and cut a notch in t hem for the pto shaft and laid them over the gearbox. depending on the brand cutter, this sometimes even covers the nut access hole as an added bonus.