Absent a waranty or statements by you that can be construed as fraud in the inducement (you knew of a defect and failed to disclose) all purchases such as this are "as is".
I'm sorry for the other guy, but it is "as is". You will probably have to sue him in small claims court, but based on what you have written, you will win.
DCG
i am not sure what you call it, but it there a law code , or a penal code number or something i can refer to when i file the law suit? the statment i gave is true. the problem was caused by his negligence without a doubt. the only reason i sold it, is because my business expanded and i needed a larger truck with more power.
It does not matter. Absent a warranty, private sales are "as is" as a matter of law. You do not need to explain why you sold it. So long as you did not guarantee the transmission, the risk of loss is his.
He owes you $3K.
Attorney
JD with Distinction, Admitted to practice in California
What this guy did is bullshit. Its an "as is" sale by law. Go get your money.
If you have to sue, ask for additional penalties as provided for by law. I haven't thoroughly researched it, but this is bull.
I hate people who try and rip people off.
You are owed $3k. He can pay for his own transmission.