Avg cost to replace a auto transmission
 

I have a 2000 sonata gls v6 with approx 140k miles, that is having transmission issues... It wont go in reverse and has other driving isues related to the trans. I am about to call places tomorrow but was wondering what the avg cost is to rebuild a transmission as well as replace the transmission? (I know it will vary for everyone but Im just looking for estimates so I can know if someones screwin with me w the prices)

Thanks!!

Transmission cost
 

I have a 04 v6 sonata. I just had a factory refurbished trans with a new torque converter done for 2,136