4 wheel drive makes a Clunk

When I'm driving along at 55 miles an hour....all of the sudden I will hear a lound noise or clunk. It almost sounds and feels like I hit a dry spot and got traction. It just dosen't seem right.

I have a 2005 Std Cab 4cyl with a manual 5 speed.

Any thoughts or advice?

Thanks,

Bill

 

I'm no expert on 4x4's, but I wonder if your drive train is binding up? Maybe your transfer case? And the reason why I say this is because you shouldn't drive with 4WD engaged on the road (during normal driving conditions), or at least don't turn sharply and go fast.
Are you on dry road when you hear this?

 

You hitting snow? ABS makes a 'springy clunky' sound.....

 

Our roads are snowy here...like complete snow/ice.

 

It'll make that sound when you disengage it at speed if that's what you're talking about, but just having it on and driving, no that's new to me.

 

Damn, you drive 55 mph in the snow/ice? You're a bad mo-fo...