XL7 has a clicking scraping noise on drivers side in reverse only. Have checked brakes and they look ok. When I put on jacks with the hub off and turn by hand I can still hear the clicking grinding

Yes get som leather or mechanic gloves on and inspect the brake area and fluid system. Ull need jackstands to keepcar raised. Jack is not safe. Get a repairmanual at apartstore for thatmodel

remove the wheel and then remove the brake caliper the anti rattle clip for the brake pads is possibly making contact with the disc or a foregn object

Hello i would check your wheel bearings or sometimes called bearing hub .Jack car up prop the car with axle stands now remove your tires and rotors once removed wiggle you bearing hub left to the right your bearing hub should have minimal play one side to the other is obvious the looser play hub will be your noise you have been experiencing.most people call this road noise.

2 wheel drive?
1 jack, 1 jackstand, 1 lug wrench,1 pair of channel lock pliers,1 pair side cut pliers1 3/8 or 10mm allen wrench, 1 six to 8 inch c clamp, 1 small pry bar grease,rags,.
place jack under truck same as changing tire,jack up and put jack stand under frame,remove tire,then using allen wrench,s remove allen bolts on inside of brake caliper,pry caliper off gently so as to not damage the brake pad,use a piece of wire and hang caliper so it does not hang on brake hose,then pull or pry the center hub cap off this will expose the bearingretaing nut there should be a cotter key in front of the nut,use the side cut pliers and straighten the cotter key then pull it out,remove the retaining nut and and crown washer,then pull the hub and bearing assembly off.
installation is in reverse,put hub and greased bearings on spindel tighten center nut while turning hub and tighten the nut very tight,the hub will be very hard to turn then start loosening the spindle nut and spinning the hub,holding the top of the hub push in and out if you feel it rocking on the bearings it is to loose tighten the slowly until there is no play put a cotter back in, put the small hubcap back on then using the c clamp and a piece wood put the c clamp over the back of the brake caliper and slide the piece over the piston cup on the inside to protect the piston,tighten the clamp until the piston is colapsed all the way, put brake pads back on put caliper on,put a small amount of grease on the smooth part of the allen bolts not on the threads,tighten the bolts.
put the tire assembly back on,remove jack stand and jack,
this is the important part,
1 be sure all bolts and fasteners are on and tight.
2 when you get in the truck and start it leave it in park,gently push the brake pedal down part way and let up do this until the pedal becomes firm.
3 after you drive five or ten miles recheck every thing.
Hope this helps.

look under the seat for a bottle under it -

have your front end looked at -
Check your wheels - make sure - 100% that they are not loose by getting out the tire tool and tightening them just a little bit - or a lot if real loose.

There are a couple of things to cause metallic sounds when turning. First thing, is if it's a clicking sound when you turn, then you have a cv joint going bad. It's usually more prominent when moving in reverse, however it can happen just as well while moving forewards. Secondly, if it's more of a grinding or scraping noise, we have a couple of options. The sound could be coming from the brakes, if they're worn or have grit stuck in them, or it could be bad bearings in the front wheel hub. The wheel hub has a tendency to making a whining noise when driving; usually most easily heard when driving past buildings. They can also allow the tire/wheel to present the appearance of leaning when looking at it. If bad enough, it can even rub on the brake caliper, or cause the disc brake rotor to wear out the brake pads prematurely. So, to recap: Check:
CV joints, if a clicking sound brakes or wheel hub bearings if grinding or whining sound.

When both a scraping and grinding noise is heard from a wheel, it typically indicates a problem with the brakes, not the bearings. If when the brakes are applied, the noise changes, it does indicate a possible brake issue. I would first check the brakes and then take a close look at the bearings, as they can still cause the grinding noise, but not typically the scraping noise. Hope this is helpful.

It could be the bearings inside the cv joint, but I would think the bearings inside the hub first.

just wanted to stop to offer some tips. I just put in new brakes on last night. I too had the same problem. The brakes were fine, but I replaced them anyway. The drum seem fine, and my emergency cable was a bit loose too. What you can try is hiting the ebrake while going in reverse or in drive. It may help. If not, adjust the ebrake cable will be needed, it not too hard to do. It should be by the rear tires towards the center.