Wanted to throw this in there for anyone who might encounter this issue. By nature of the design (Georg please correct me if you've updated the design since I got my set from you back in 2010), the block that slips over the vertical shift rod on the case for HI-N-LO is secured by a set screw. Since this is designed to avoid having to dismantle the tcase for installation, if the set screw loosens the rod can slip and fall down into the case. This happened to me last summer, and thanks to some help from Tor @torfab I figured out to use some neodymium magnets from Harbor Freight to lift the rod back up and secure my block back into place. My block actually has two threaded holes for set screws, so I got one secured, then put a second screw in with some threadlocker and torqued it down good. I then pulled the first set screw, gave it some threadlocker and installed it good and tight as well. I haven't had a problem since, but when I break down my case hopefully this summer for a tranny rebuild and addition of a low range gearset, I'll drill the rod, thread it to match the linkage block and run a longer bolt all the way through that will be a 100% fail proof solution.