- Aug 8, 2012
hello all. It seems like Im having to go through this 4wd system component by component. First off I bought the truck and the front axle disconnect was worn out..the 4wd worked, but the bearings in it were shot and the cv axle had tons of play in it. I replaced the unit with an aftermarket one. Everything seemed to work (or so I thought). It shifted into 4wd ok but I never actually verified the front wheels were pulling. Anyways fast forward a few months, and my TCCM goes out. No lights on switch etc. I replaced it with one from a later model and the lights came back to life, as well as the transfer case motor works again. I can run it in all modes and the tcase switches fine but my front wheels are not pulling. I also didnt hear anything from the front of the truck as if the disconnect was trying to engage. Here is my question. When I replaced the disconnect, I noticed the torque spec for the motor was very little..inch pounds if I recall. Anyways If I would have left it like that, the motor would have been very loose. In other words with the screws tightened to spec, I could grab the motor and it would wiggle around. I tightened it up to where it was firm against the disconnect. I got to thinking about it and am wondering if the looseness was normal? Maybe it was designed that way to help the actuator rod center up in the disconnect or something? My initial thought was the disconnect motor mounting holes just needed a tap ran through them or something but its got me thinking its bound up now. I plan on looking at it later in the week, just was gonna throw a line out and see if anyone could offer some assistance. I plan on pulling the motor off and checking it off the disconnect. I failed to do that when I replaced the disconnect because it was working fine before.