ok, thanks for the replies guys! Yeah mine also was jumpy before the install so i guess its not that big of a deal. Do you think the CPS would make it jump around? I thought they just gave out on ya, but if someone else has experienced some other reaction with the CPS, please let me know. I have my spare ready in the glove box! The jumping is kinda weird on mine cause it will rock a little when i'm in gear with just a little pedal, like when i back up my drive way, it'll shake noticably. I don't know why. I had my drive shaft rebalanced and a shim put in the carrier bearing. There was a TSB for that but it still shakes.