THIS IS A 4x4 1500 1994 SUBURBAN 5.7
wHEN IT IS COLD AND ONLY IN 4WAY IT MAKES A LOUD CLUNKING , ABOUT EVERY 2-300 FT .... DOESNT DO THIS AFTER VEHICLE IS WARMED UP, OR IN 2 WHEEL DRIVE . AS BEST I CAN FIGURE "CLUNKING IS COMING FROM THE FRONT OF VEHICLE ?? THIS WORRIES ME, AND I WOULD LIKE TO USE IT IN 4WAY FOR PLOWING AS IT HAS A PLOW ON, BUT I DONT FEEL SAFE DOING THAT UNTILL I HAVE SOME GOOD INTEL ...