I have an 03 1500 quadcab 4x4, 4.7L

Ok, a strange situation. So i've had tons of problems between my transfer case and rear shaft lately - out of balance shaft, then bad gasket on the case main seal, now the rear seal on the case / slip yoke is leaking and the seal is a "dealer-only" plastic piece for $53 after my buddy's discount! So now, to make it even worse my front driveshaft is squeaking extremely loudly like a damn Jack-in-the-box!!! I put it on stands and spun the front axle / shaft and thats definitely my source. question is where??? The U-joint is intact and solid, axle fluid is good (both level and consistency), t-case fluid is perfect, and no standard-size grease fitting in joint. I read in posts about fellas with 2500 4x4's that have a needle-sized fitting and I can check again if its a likely solution.

But before I get under it again.....any advice or other checks at this point.
Similar problems with front shafts on 1500's?

Thanks gang :-)