Magnesium
  - As used in Tilton 52-Series Magnesium rear-mount starter driveline packages
  - For use with Tilton 102T flywheels
  - Accepts Tilton 1500-Series hydraulic release bearings
  - Rigid design reduces power-robbing driveline flex
  - Blueprinted for accurate alignment
  - Weighs 7.4 lbs (P/N 52-501)