You should convert the front to disc brakes and only convert the rear if you are interested in appearances.
If you are a driver of average or barely above average skill, the rear discs will not result in better braking performance. Rear discs will help on a road course but will you be racing the car that way?
I made the rear disc swap in 2006 entirely for the looks of them. Drums were clearly visible through my rear wheels and to me, they looked cheap. The disc brakes looked like
performance so that is why I bought mine.
Doctor Diff sells a variety of brake and suspension parts, I got my brake kit from him. The kit I got did NOT require the "Green" bearings, I needed wheel bearings anyway so I gave them a try. I wore out the first set in about 8000 miles. When this second set go bad, I'm going back to the tapered design.
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Make note....When the term
Green Bearings is used, the name
Green is a brand name like Kleenex. Google, Coke or Xerox. The bearings are not green in color. There are other manufacturers of the type of bearings commonly sold by Green. The "Green" bearings are a ball bearing, not a roller so their load carrying capability is much lower than a tapered roller bearing. They were promoted as a safe alternative, a
No adjustment needed/No maintenance required replacement part.