Been there, done that. Cracked the clutch housing on my NH TC33D. THe only reason it was not in two pieces with its belly on the ground was that the backhoe subframe & belly pan and limb risers/FOPS up above held it together. Dealer estimated $7000 to repair "IF everything came apart and went back together well and IF no further damage was found". Ended up finding a used clutch housing from a New Holland tractor salvage yard and went with a local tractor repair guy. Got it all done for $3000.