Rob , I built a high rise tailgate on my 9370 , I'll have to get some pics for you . if you have room for 2 645mg servos under the box in the back , you could make some linkage arrangement to lift the tailgate . I have mine up buy the dog house in the body . here check this site out
http://www.jmhtrailers.com/Heavy-Dut...mptrucks3.html mine is somewhat based on theirs .
Steve
PS I'll get a vid up of mine working by the weekend