so my 1862 was towed by a car about a 1/4 mile exceeding 10-15 mph..I am aware of the hydro-towing rules..obviously the person towing wasn't... now the rear end is locked up.. free wheels when in the air on a jack but dosn't move on the ground., the deck and steering are working....so where do I start? with the hydro pump? or pull the rear end..extremely frustrated..please help