Clutch basket modifications and building

All clutch basket builds start with an inspection and initial cleaning. Then the rivets are drilled out. From there all parts are removed, inspected and cleaned. All parts go through an intensive cleaning process. From there the steel gear is centered to within .0002" tenths in a 4 jaw independent lathe chuck. This allows the bearing surface on the gear to be machined to match the gear bore withing a tolerance of .0001-.0002". This is often off by as much as .006" from the factory! Bearing surface is machined to a much smoother surface than the factory provides. Aluminum basket then has its rivet posts threaded to accept higher strength button head fasteners. Next it is machined to lock the inner steel spring plate to the aluminum basket so it cannot ever move again. Then aluminum basket is mounted in the 4 jaw independent chuck and centered to under .002" runout. That is about as good as you can get with a cast part. Bearing surface is bore to fit an over size 660 Bronze bushing insert. Once that is pressed in, the lathe is then bored to fit the dimension needed to properly fit the bearing clearance of gear and basket to .003-004". That is tighter than the .005+ clearance in the factory part. The very rough cast Anti-balloon band is machined while centered in the lathe to remove excess material that might effect balance.  Parts are cleaned again and made ready on the assembly table. There are proprietary details left out. But that covers the main parts.