For us engaging is almost always immediate, disengaging can take a bit though.

Keep in mind the locker really shouldn't be used (I actually think it turns off) at anything above 15ish MPH. It's useless at these speeds anyway.

 

Probably normal.

Were you counting the time to engage 4low as engage time for the locker?

 

I've encountered Rear Locker engaging slowly. I think its because it needs to find the right teeths while engaging so they dont grind

 

Locking rear sometimes seems to be slow to engage or disengage, but is generally quick to engage for me and a little more sluggish to disengage. You need the right speed and gear for it to happen. I sometimes have to switch into neutral or rock forward/reverse to get it to disengage.

 

As already stated, there can be a delay. I usually put the KL in gear and move a couple inches backwards, then try again. That usually does the trick. Some times it takes even more, but I have never had it not engage or disengage.

 

Thanks--- I was using the rear locker in snow. It helped me bulldoze through a snow plow bank, whereas snow mode did not give enough traction.

 

I found that engaging/disengaging it will moving helps... and especially if you can be turning somewhat. That way the left/right wheels are rotating at different speeds so the teeth can line up together faster.

 

Sometimes in my power wagon I steer like I'm doing a slow speed slalom to get both axles to lock when it seems to be taking awhile. Most times they lock right up. My '07 PW I sometimes I had to drive a figure 8 to get them to lock up (but it had issues.)

 

Just tried using the rear locker today. Was going really slow in 4 low.
For some reason it engaged and disengaged just fine.
Sometimes it works, sometimes it doesn't, haven't figured out the magic.
Turning the steering wheel back and forth a little is supposed to help.
Hopefully someone will discover the "trick".

 

I've had several issues engaging and disengaging. Sometimes it took 5 or 6 tries.

No issues since I got my DTCM flashed.