I'm looking for any useful input. My 1990 GXL has since first purchase 20 years ago been given to jumping out of low range not always in convenient moments. Transfer case has been in and out a number of times and recently, as part of the re-build, the TC was reconditioned along with a customised new gearbox. This was done in part, at least, to address the problem. The problem continues. Any suggestions? I guess its fair to say the obvious things have all been done....but...it still jumps out!