Iseki TU 1700 Broken spider Gear??

[65gtoracer]

I was mowing with a finish mower and hit a steel stake.The tractor starts will not go in gear rolls when in gear.When you let the clutch out it seems like it in two gears and stalls.PTO turns free when its engaged.I think i might of broken a gear in the rear end?? Thanks for any info.