I've got a 91 blazer with transfer case problems. It pops out of 4lo. It is fine in the other gears. It will also stay in 4lo allday long in reverse. I've checked the linkage and it was fine. I've also checked the big rubber mount on the cross member. It is pretty sorry, but not the culprit. I just don't know why it would stay in in reverse, but not drive. Anybody else have this problem? Any feedback would be greatly aprieciated(sp?) This is a stock truck with 33's on it. Thanks in advance. Ok so I disconnected the linkage and put it in gear, but it still did it. When it does this, it sounds awful , like gears grinding in a manual trans. Like I said it does fine in reverse. Could this be the chain? Are these transfer cases hard to rebuild. Sorry for all the questions, but I'm poor white folk and can't afford fixing stuff that isn't broken. Thank you for any help you can give me.