How good are you? ha ha Don't be in a hurry and it goes better. The top bolt is the clincher. In my install I shortened a long socket. Check that out. A flex head ratchet works and one with a bent handle saves some knuckles. The first time I tried to use an air ratchet on that top bolt and before I could stop it, it was wedged against the diff. That took awhile to get loose. I don't recommend air tools on the top one.
There is a portion at the end of the bolt that is not threaded that will help you guide it into the hole. If you got small hands you might get it started by hand. Or if you have a spinner attachment that you can attach to the socket you can slowly get it started with your fingers on that. It will have thread locker on it that is dried. If you wire wheel that off and add fresh locktite it will go in easier. You may have to wiggle the bracket a bit to get it to line up. Once that one is started I put in the lower one but thought they were both really long. I was concerned about messing up the threads I did not cut it. It seems long. So if you look in my pictures I added some thick washers. There were still plenty of threads that went thru the welded in nut plate. Your call on that. When I got them run up all the way, I used a 3/8 ratchet handle I have that extends. You need more leverage than a shorty. I got it as tight as I could which was until it stopped turning and a grunt or two, depending on how big your biceps are.

First time could take about an hour to remove the skid, remove the bracket and rubber bushing, if there is one, ha ha and put it all back together.
One short cut you might try with this 2 inch sleeve/bushings is remove the lower bolt completly. Loosen the top one to get some slack and work out the rubber bushing and try to slide the steel sleeve/bushing under the bracket. There is a tab on the bottom of the bracket that if you have it loose enough you can jiggle it out from under the slot on the frame. If not, you got to remove both bolts. After several times testing the fit for the first one I just cut the damn thing off! Having too many tools can sometimes result in drastic measures!
Somebody let me know if the 2 inch sleeve fits without disturbing the tie rod boot and clamp.
I made these shorter than my prototype 3 inch so the stiffer replacement boots would also go on.
sorry I have been rushed to write some of this. I will try to get time to review it.
I know you had some experience with the diff mount. The dealer that did this said they have been replacing the rubber ones by dropping the diff while up on a rack to get room to reach that top one. I don't think I would try that at home.
Got questions or don't understand all that let me know. Just think it thru and take your time. Don't start making up new words and don't cuss the messenger.:shifty: