Wheel Bearings
#1
#2
Wow how weird is that..I have an 02 as well that is making a grinding noise when i am driving..so im not sure it is the wheel bearings or not but from what i have seen it looks as if you have to buy the whole hub assembly if that helps you out at all..i got a post that i just put on ********* and look forward to see what people say as to what my problem is..but i am leaning toward bearings as well..but hope i helped and good luck
#3
my truck was grinding and it turned out to be the bearings, you cant repack them because there sealed so you have to replace the whole assembly, wasnt too bad once you got past the fact that the old ones were impossible to get off, ended up using a impact hammer and then a sledge hammer after that