Got these installed today. I followed ClimberD's steps, and overall the process went rather smoothly.
A tip though.
I was unable to fully insert the the bushings into gears by hand, even after freezing the bushings and putting a torch to the gears, I was left about a half inch of bushing protruding from the gear.
I was able to completely insert them using two blocks of wood, one of the spacers that was in between the old bushings, and a vice. I lined the spacer up on the end of the brass bushing that was protruding and pressed it the rest of the way into the gear between the blocks of wood. The reason for using the spacer was to get the ever so slight recess of the bushing into the gear.