Has anyone installed the land rover genuine parts transmission service kit for the ZF4? I ordered one many months ago, but have been a little timid to take my transmission down and install the kit. Does anyone have any suggestions on how to do it? Rover's North says it is a pretty easy job. Are the rumors true that if the transmission has not been serviced in a long time it is better to leave it alone? I just don't want to open up another can of worms here. Any help is appreciated.