Front axle won\'t lock in My 1996 Blazer will not lock in the front axle. I had it in a shop this weekend and we narrowed the problem down to the axle. The transfer case is engaged, the vacuum actuator is pulling the cable, and both ends of the cable were connected. We pulled off the cable on the axle house to see if we could engage it manually. The rod would only move a 1/4 inch or so either way. What could go wrong on the inside? Is it worth tearing into or should I look for a replacement front-end? Could the shift fork be "gummed" up? Any help would be appreciated.