I have been reading this forum for about two months, and have found many of the tips very helpful since I bought my 4020 back at the beginnig of April. Now I happen to have a problem that seems to be the opposite of many others who have posted here and that is that my power shift does not want to go into the park position, it stops at the neutral slot and will not go further. I am suspecting that it is a linkage cable or something like that based on what I have been reading here. Any helpful hints would be welcomed. My thanks in advance as I am not a great mechanic and am learning as I go