depends. if you are going completely stock around 2K. more if the solenoid/valve body need replacing. if you start putting in other parts such as a Camaro pan, stronger intermediate shafts, new pumps, etc. it can go over 4K. but with the basics 2k give or take a couple of hundred dollars. pace performance used to have a smoking deal. a new transmission at 1500 plus 100 shipping. now it is 2k plus 100 shipping.