hata

iTrader: (1)

Great question! Actually some sites have the speed rating. I forgot if it says oil speed rating or something like that...
Other than supercharged scions and the porshe site that does rebuilds (i think 929 motorsports or something like that), its a bit hard to find out. I bought some "6003"s off of VXB bearings and they sent me some 7003 (or something like that) and i'm praying those work for the price I paid. It is more cost effective to go through supercharged scions and the porshe site due to the fact your going to spend about the same amount of money no matter where you go but atleast with the sites that already have a rebuild kit ready, you know your getting the right speed bearings. I'm taking a risk when I rebuild mine soon. I just hope the ones I have are over 69,000 RPM as the site claims (that i bought mine off of).