probably a drop bracket for the trackbar.
something like this

http://www.topguncustomz.com/p-7873-...025003500.aspx

http://www.topguncustomz.com/p-8463-...p-bracket.aspx

 

That looks about what he explained to me, said he had to drill a new hole for it to fasten on? Does that sound right? Thanks for the reply and name of the item, much appreciated.

 

i think those are just bolt on. no drilling.
should be pretty easy. you might have to jack the truck up and down, maybe pull the axle sideways a tad with a prybar or jack-strap. more or less the same as changing the track bar.