Maybe front driveshaft is binding up? Make sure it's greased. Mine is making noise too, but it's been too cold to mess with it and now that it's warmed up it's too wet to climb around underneath.

2001 Sportage, TJ 106's, Everet spacers and bumpstops, Bilstein shocks on the rear, cone filter, Crager wheels, 235-75-15 Goodyear tires. Custom front winch bumper by Dave Scott. Currently DOA, but it is a work in progress.
2011 Kia Forte EX