Transmission problems

Here is the problem, I just looked up the years that work for your truck as far as the transmission. It shows 1996-1999 compatibility so the 2002 is different as you found out with the connector. I really do not know how your going to convert the three wire to a five wire. Also even if you get through that no telling what is going to happen when you start driving down the road. If it will shift right check engine light going off etc. When I do transplants I make sure they are compatible otherwise too much heart ache, wasted time and money.