Tire talc or baby powder to coat inside tire and tube
New cotter pin for axle nut
Safety wire to reinstall brakes to wheels
A schrader valve remover tool (Bike shop item) is handy to remove the valve on the tube.
The tire rims split. Be sure the air is out of the tubes. 7/16 deep socket helps.
My brother was killed by a jet tire exploding because a mechanic was trying to split a rim without letting the 200 psi out of it. Careful!!!
See thread this site on flats.
(OSHA requires a tire cage for split rims)
A tire iron may be needed to get the old tire off the rim halves. You may have to bang on the tire to get it free of the rim or use a special tool.