The Transmission is a factory t-5 (M39).
Transmission Modifications or Replacements Include
? Zoom Kevlar Clutch
? Dorman LB9 (305 TPI) nodular flywheel (18.5 lbs vs stock L03 25lb)(14008646)
? LT1 Clutch hydraulics (GM part #12559912)
? LS1 aluminum drive shaft
? Pioneer Products Clutch Fork (CF133)
Flywheel comparison, left is L03 and right is LB9

Throwout bearing comparison
