my advice find some concrete to work on and use a engine stand, cherry picker, or something else. that you can use to help pickup and keep the tire up right. and then easily slide errr "roll" around to re-align all the bolts and nuts up. those rear tires can be one heavy beast. and i would not recommend a single person job, but 2 person job.
on thing i dislike about rear end of tractors. there is no easy place to put a floor jack to other. and lift tractor up, and then finding room to block the rear end up. everything just gets to tispy topsy. and ya need to be careful. a lot of weight, and a lot of shifting, kicking, and screaming, when dealing with the heavier stuff. and things can go bad in a heart beat, if not securely blocked up. and other wheels are chocked up.
or contact a agriculture / tire dealer. and have them come out and due it for you. that may charge 50 to 150 bucks just for a visit. if you want filled rear tires, they could do that to while out.
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been wanting a 500lb to 1000lb crane with a hand winch on it that either fits in back of pickup truck or onto trailer that also 180 to 360 degree turn, harborfreight, grainger, northentool normally have some sort of sale. and of course when they have the sale, something comes up that money needs to go else were.