[tucsonjwt]

I agree with what has been stated above, but I would also consider the control arms. If you have a worn out front end to the extent you state, the control arms (both upper and lower) may need replacement. My lower left control arm was so wore out that a rebuild was not possible. If you do need control arms - this is one place where I would spend the money for AC Delco/GM OEM parts. I got a Raybestos replacement and it did not have the keyhole slot for the brake line bracket to attach, and required hacking to make it work.

Be advised the control arms are expensive, but without good control arms the other parts won't give you a good result.

I would drive your truck to a repair shop that advertises free safety checks and get their opinion on what is wrong, with special attention paid to those control arms. You would get a second semi-professional opinion for free, or take it to a good alignment shop and pay a little for an inspection to save a lot in the long run. Plus, they should let you take a look at the truck with it up on the rack and that will be a big help.