o.k 1990 bronco 4x4 351 I'll have to start from the begining. I replaced my pinoin bearing due to a bad smacking sound when put in gear. during this a co-worker noticed the wheel bearings were loose so i tightened them finished the job I started with the pinion & lowered to test drive. too my suprise a whole nother noise has started. first thing that sprung to mind wheel bearings. so 2 days later new races,bearings everything. less noise but still there. Now too discribe the sound. almost like the sound big mudder tires make along with a wining noise which seems to knock periodicaly.weird I know maybe transmission/universals?
if anyone can be a help I would greatly appreciate it. I love my bronco but have about gave up on it.