Hey Guys, I have a question for you all. The other day my truck started making a poping sound when I was going slow and would turn the stearing wheel. I thouhgt it was low on power stearing fuild, but it was not. The sound is only heard inside the cab. The only other thing that I think it could be is the small U joints that are on the stearing column. Has anyone ever replaced them and how hard is it to do. I appreciate all of your help.