I went and did it. I just had my 1000MH 5 speed trans TCM reprogramed to allow the 6th speed turned on. I am stoked. After the procedure we put it on the freeway and counted the shifts. They were all there and 6th dropped 400 RPM. 5th at 65 was 2350 and now it's 1950. Nice smooth shifts. Hopefully some milage increases will come along with the reprogram. We are going to drive to Florida in Feb so we'll see.
Denny