First of all i want to say thanks for all the help that i have got off these threads. I currenlty bought a 99 grand prix gt when i buying it i knew the tranny was going. So i ran some seafoam thru it then serviced it. I got about 600 miles on it then the problem that alot of people have, it started to not go out of 2nd gear. Any ways my question is i bought a 01 bonneville for a tranny, i know that the 99 is is one year only but we wanted to see if we could get it to work. So we tore both apart in all we could find is the plug was different in the neutral safety switch was on the inside of the new tranny. So we put the wiring harness from the old one on the new one in switch the switches. Got it back in and now the only problem i have is very little rpm change at shifting. so im wondering if someone could give it a thought in see if they could come up with a solution.