[teppy]

Have a major grinding noise coming out of front end. Removed the front diff fill plug and the fluid is all metalic. I will pull the cover in the AM to see what happened. My question is which is cheaper and/or eaiser, replace whole alxe assembly with used one, or rebuild diff. I always do my own repairs, but have never set up a diff. before. I have always just put in a "new" junk yard axle. 98 Grand 5.2L 249

Thanks!

You need to replace the assembly. First, loosen the front wheel lug nuts, but don't remove. Use a floor jack when lifting up the front of the vehicle. Check this out, how to replace an axle assembly for complete procedures.