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AODE, 4R70W, 4R75W

Front Cover

Part No.

FD-CC-20R

Front Cover
  • Front Cover

    Front

  • Fd-cc-20r-back

    Back

Small_fd-cc-20r_front Small_fd-cc-20r-back

AODE, 4R70W, 4R75W

Front Cover

Part No. FD-CC-20R

  • Dia.: 11.250"
  • Material: AISI 1026 steel
  • Surface Finish: Reactive
  • Machining Process: Fully Machined Forging

Sonnax offers heavy-duty forged front cover FD-CC-20R for the 11-1/4" Ford AODE, 4R70W torque converter. This cover is machined from a forging that allows the wall thickness to be increased where needed. The increased thickness between the friction ring surface and the mounting pads increases the stiffness of the front cover.

The friction surface on this cover is reaction (smooth) so that the friction ring is bonded to the piston instead of the cover. Bonding to the piston is easier and is preferred by most rebuilders. Bonding to this cover is still possible by machining a rough 90-120 RA finish on the clutch surface.

  • For 11-1/4" applications
  • 10.60" stud pattern
  • Made from forged steel
  • Reaction clutch surface (bond friction to piston)