In addition to my Y2K Turbo Diesel, I have a 95 Dodge Ram 4X4 and a 94 Jeep Wrangler. On both the 95 Ram and Jeep I have to replace the front wheel joints about every 30,000 miles. All these vehicles have the same type of front ends. The noise you describe sounds like one of the types of noise the front joint makes when going bad. You can get a big screwdriver into the joint area to fles it a bit to determine if its bad. Good Luck.