Re: 4X4 Front Diff Noise
Diff/Ring/Pinion setups are expensive
Take it to a shop, make them investigate the front axle hubs/ wheel bearings/ u joints/ and diff itself.
Some gear problems can be impossible to see unless your a differential-guy until it blows up.
'83 Ford Ranger 2.3L 4Spd, Dual Tanks, 195/60R15's, Welded Rear End TOTALLED AT 483,211 MILES