As promised here is my update to my situation with the front end shake. I had the upper and lower ball joints replaced and the shake went away... So that ends that particular problem for me, thanks to all that gave their input, it is appreciated.
Respectfully,
Robert P.
1999 Chev Silverado C3500 Crew cab dually long bed 4x2 - 6.5L Diesel, 4L80E / 4.10 gear.
4" Exhaust
Kennedy gauges
Kennedy Inter cooler
TD-MAX Boost Controller
U.S. Diesel Performance ECM
U.S. Diesel 40HP injector Kit
150,000+ miles
Pulling - 2013 Montana Mountaineer 346LBQ fifth wheel (12840# empty)