When you regear the 44a, be sure and have someone experienced with that axle do it or at least get all the tech info you can. They must be set up with .005-.006" back lash to avoid the dreaded gear howl. The guy that installed 488s in mine years ago, had to set the gears three times before it was acceptable. Even then it was never as quiet as the stock 373s were.
2005 LJ, 112" wb, RJ60's, ARB lockers, Fox Coil overs, 40" Creepies