How many are running a th400 with a gear venders overdrive? i am in the process of having my 400 built and just got a smoking deal on a gear venders overdrive still sealed in the box. i would like to see some pics of the gear vender overdrive installed in a tr and any advice on installation. also would like to hear some feedback as to how well you like the unit..Neal Racing Transmissions are building my th400 with rev vb and tb. i am also going to run a 10" Neil Chance torque converter. thanks Bob