I have a 2011 Ranger 6 cyl 4.0 2 wheel drive.

I have been noticing this sort of click noise coming from the front of the truck when I reach 20 Km/Hr the first time it is in drive. By that I mean, after the truck has been parked (I normally back it in to places) and I then pull away, once I reach 20 Km I hear it. Just a single click. I don't hear it again unless I have stopped and parked, and I believe, now that I think about it, have reversed. The sound is very simular to the sound my wifes Ford Fusion autolocks make when the doors lock as you drive away, but quieter.

Just wondering if anyone has noticed that type of sound when they pull away and reach that speed for the first time on a trip?

Hope that makes sense. James.