It's a fairly easy job, not many tools are needed. The hardest part is removing the inside seals. You need to pry them out, and do not damage the inner bearing. I usually use a couple small pry bars and a screw driver. Punch the steel seal rim (screw driver) and start to pry it out. I pulled one seal, then I go to Napa, and got 4 replacements.
Tool list;
Lug wrench
Jack
Jack stand
Large adjustable wrench maybe 1.5" jaw
Screw driver, slotted - removal of inside seal.
Small pry bar - removal of inner seal
Hammer - install new seal
Small piece of 2x4, maybe 6" long - to set the new seal, using the hammer
Paper towels - a lot, to clean the dirty bearings. At least 1 roll, better yet have 2.
Optional items;
Disposal gloves
Wd40 - larger can, works as a degreaser, remove the old grease from the bearings and seats. Spray it on and roll the bearings on the paper towel. Repeat as needed.
Oil changing pan - clean parts in it, holding place for parts
Brake cleaner - 1 can per wheel, removes light greasy films, and brake dust.
Trash can - for waste products.
Can't think of anything else.
Most modern TT wheel bearings no longer use castle nuts and cotter pins. But, it could. If you do have them, I use an awl to help pry them out. Also a side cutters to clip the cotter pins to help get them out.
There are lots of good YouTube videos on the subject.
Good luck.
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