toolcat 90 inch mowing deck

[JWB53]

i've had 90 inch deck for toolcat for 2 years now, last year it broke off from plate holding it to toolcat while tramming at slow speed, also wheel shaft bent on deck and belt broke while mowing 2-3 foot weeds. this year i've bent another wheel shaft and broke another belt. any suggestions for heavier built cutter to use on toolcat? i know bobcat makes bushhog type 6 foot deck but i don't want to go mostly in straight line and i like the speed potential of 90 inch deck. thanks