Sounds like you don't have the e cable tight enough. Jack up the rear so that your tires are free. You should be able to spin the rear tires by hand at least 2 revolutions. Start tightning the e cable so that you get drag on the rear wheels. Tighten till you only get about 1 1/2 turns when you try to spin it by hand. That should be it. I don't know if its the proper way but its always worked for me. Also, make sure its in neutral and you have blocks in the front. No use putting extra drag in the mix. Cecil.........