Brief story...
I have a 05 2500HD 6.0 Gasser. ( i know buy a diesel).. I have the after market keys cranked 2 inches and 1.5 inch blocks in ther rear with airbags and bilstien 5100. 285's on 16x8..
The other day i was doing some offroading on some long dirt roads going about 40mph or so then hit a section of whoops and after the 3rd whoop the truck launched in the air, yes if came off the ground i would say a couple feet in the air, HOLY CRAP.... But actually it landed so smooth no bounce at all.. so the next day i here a clinking clunk sound up front , its not repetitive so its not in the drive line, ( i think) but when i first give it gas of when i first apply the breaks... When i crawled under the truck and look nothing was loose at all, BUT i noticed the Torsion Bar adjustment Bolt was bent between the key itself and the adjustment nut. WTF. could this be making my clunk sound? i know i need to replace this right away. is this a GM only bolt (part) or Napa maybe.. is it bad to keep driving like this it seems to ride just fine,,, anyone have a part number maybe,, Thanks for your time and sorry for the long post,,,, I wont be launching over any whoops anymore...

Check the rest of your suspension and steering components. Mostlikely you have a bad component there. If your not good with diagnosing the problem, go in for an alignment and tell them about the noise.

its the weidest noise ever, its only when i first apply the brakes.. i can jump up and down and rock the truck side to side and no noise.. if the truck is only going .5 mph in my driveway and i apply the brakes hard to rock the truck it makes the noise only with the truck in motion. so annoying i cant pinpoint it... yet so freakin loud....

UPDATE...
just found that my drivers side upper ball joint is loose i can wobble tire up and down and can see it move. BUT,, thats not where the noise is coming from.. i can also move my transfer case up and down and can hear it clicking when i do that.?? normal??? or no? thats around where i can pinpoint the origin of the noise, so maybe its the bent bolt making the noise in the dimple of the key?? any suggestions? HELP??? thanks

UPDATE...
just found that my drivers side upper ball joint is loose i can wobble tire up and down and can see it move. BUT,, thats not where the noise is coming from.. i can also move my transfer case up and down and can hear it clicking when i do that.?? normal??? or no? thats around where i can pinpoint the origin of the noise, so maybe its the bent bolt making the noise in the dimple of the key?? any suggestions? HELP??? thanks

I would check on why the transfer case is moving.
is it loose on the trans side or is the rear mount loose and the whole thing is moving.