Hi. Welcome to JustAnswer.If the answer I provide for you is helpful, please click 'ACCEPT'. I won't be paid if you don't. The transmission will run you about $250.00.
Installation is about the same.
Personally I would not repair this unit. For the price of the repair you can get a very nice new unit.
Please let me know if you require further assistance, or information. If not, please click on "ACCEPT". After you accept, please leave feedback.Thank you.