Blew out rubber boot while lubing drivers side of 2002 chevy 1500

check for when the noises occur. check if the noise is when you are going over bumps, rough patches,on acceleration, deceleration, high speed ,slow speed. Check for loose items in the boot /spare wheel well ( jack, spanners etc)
The mechanic should have been specific in showing you the diff problems and I would now ask what diff oil was used in the oil change because if you have limited slip diffs thee is a special oil used.
from your initial description of the noise I am thinking shocky rubbers or suspension rubbers worn or loose.

then its either a bad switch , or check in the rubber boot between the drivers door and the cab for a broken wire

you have to do an automated bleed with a scan tool.There is a section in the scan tool to do such a task.

you obviously have a short to ground on one of the wires to the back (if it was the front the brake shouldn't blow the fuse). the most common problem is usually in a trailer light harness. if you look under the drivers side rear of the truck, down under the tail light there will be a plugin junction. pull this plug-in apart and see if the fuse still blows. if it does then the problem is forward of that connector, if it doesn't then the problem is behind that plugin. be sure to check for "green death" (electrical corrosion) at all joints especially any trailer hook ups.

You need to have the dealer scan the control module to see what codes show in memory

The ticking may be caused by a torn or damaged front CV joint boot. Check each side of the axle assembly, right behind the tire for a damaged rubber boot. If the boot is damaged, you should see grease from the axle all over the front components.

jack up pull wheel, pull brake caliper and bracket, take nut off axle in center of bearing on back side where axle goes in should be 4 bolts make sure to dis connect abs sensor cause its comin with the bearing that should be bout it some times they come out hard but the will come out

yes, it can be. you can jack the front wheel and turn it if one is more noise than another then it's a bad one

Might work!!!! get under the front end and try to pull the bonnet release cable when open take the live off the battery and keep arking it off the battery may open the doors if central locking.

check the cv axles for wear such as torn rubber boots, when in 4 wd the noise should be even worse