Looking to do some suspension upgrades, vendors help me out here

Im looking to do a leveling kit on my 04 f350 dually, I am also needing to replace the trac bar, but would like to do so with an aftermarket adjustable one because eventually this pickup will get a 4 or 6" lift after i get another one to tow with. Who makes the best kits that can be added to and have the best longvevity. I don't deal much with suspension work except on the rock crawler and it has coil overs... help me out here and pm me pricing as well

Apparently no one sells suspension parts

Well as far as a leveling kit just get a maxx-lift or one from custom diesel I believe their called. I've had the maxx-lift for about a year with no complaints.

call Trevor at PMF he just took care of me INCREDIBLY well with the order I just put in! he bent over backwards and was able to talk me through everything even with me being in Afghanistan right now.

Chad