Recently i bought a case ih 7140 mfwd tractor on ebay. I talked to the seller 4 or 5 times before i bought it and all the guy talked about was how nice the tractor was and how the motor and transmision were freshly rebuilt. Well the guy convinced me it was a good buy so i went ahead and bought it for what i thought was a good price. It was around 500 miles south of me so i paid to have it hauled up. When it got here i thought it looked a little rough but he did put in the auction it needed paint. Went ahead and hooked it up to the field cultivator, put it in the field and started pulling when i noticed a few things, 1 being under a hard pull the transmision slipped and 2 the front wheel assist didnt work. I called the seller and reminded him i had it in tthe ebay listing all this worked fine and it was a mexhanically sound machine. The guy sidnt believe me so i had the dealer come out and run some tests ans sure enough the tranny was bad and the front right planetary was junk. The guy told me to have the work done and he would help me out on it. Well $9000 later for the tranny alone and the guy will not return any of my calls.i got a quote for $26000 from the dealer( found out it also has a cracked head) to fix every thing that it would take to make it a workable tractor. What should i do? Should i sue?