You may have a problem with the track bar. Replacing the factory track bar with a larger, adjustable track bar can prevent driving problems like front-end
shaking, misaligned steering geometry and uneven tire wear.
You need a steering stabalizer and if you have one it may need to be replaced.
replace front brake rotors and pads.
track bar needs to be replaced.
Loose Motor Mounts
Tires/wheels out of balance?
The 1500 4X4 went to the independent front axle in 2002. The 2500 and 3500 4X4's still have a solid front axle.
Track bar joints worn out.
It could have the same ratio or it could not.
Check for warped front rotors. under slight brake application it may not shake. But under hard braking such as getting off an offramp the truck will shake and the brake pedal may pulsate slightly. Chances are real good this is your problem.
Squeaks are hard to find. try having someone push up and down on the front end at different places while you listen for the squeak. The noise is most likely shock or strut related.
Could be a number of things upper and lower ball joints,wheel bearings,warped rotors,bent rim, tire out of balance etc.
NoNo