i dont think theres anything wrong there with having to back up...sometimes thats what you have to do to unbind the t-case...i had to do it all the time in my grand when i had that...it had the selec-trac in it tho...and a buddy with the quadra trac in his does the same thing...its not nearly as common with the cammand trac like what we have in our YJs/TJs, but it does happen...ive had to do it maybe twice since i got my Rubi...atleast once anyways that i know of
so yea, dont sweat it, its all good....like my buddy said with who has the grand with the quadra-trac, its just something that the "real" 4x4 systems do...and when i say that, i mean ones where theres a lever to put it into 4WD, not a button on the dash....