1979 Elgin Pelican sweeper, John Deer turbo diesel engine

1979 Elgin model S sweeper it has a turbo diesel John Deer model 4239T 239ci 4cly engine unit has 28,621 miles on it,the engine runs great,bolts going from the hydro trans to the differntial sheered off, the machine ran well up to that point,we have scavaged some parts off of it for our other machine,unit could be fixed or engine could be pulled and used in a different piece of equipment.this piece of equipment does not move due to driveline issue WILL NEED TO BE TOWED!! THERE IS NO TITLE FOR THIS!! the ac is busted but it has it so dont't ask