the transmission has gone out on my father in laws 2003 impala. it has a 4t65e in it and I have a spare transmission out of my 2001 gtp. the impala either has a 3.05 or a 3.29 gear ratio, but the gtp has a 2.93. I am wondering if someone could write a dhp bin file for a stock 2003 impala with the correct gear ratio conversion. I will have my father in law look at his car and find out which final drive ratio it has.