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Oversized valves are hardcoat anodized to combat premature wear
use bore sizing tool 76948-BST (sold separately) to provide exact sizing and improved bore finish
Match the angles of the dimples in the picture
(Updated heavy duty design retrofits to 1997)
Reconditioning the bore and installing Sonnax TCC regulator and isolator valve kit 77754-03K restores normal TCC operation by shoring up the hydraulic integrity of this circuit
A4LD 4R55E 5R55E Transmission Intermediate or Overdrive Band Servo Piston ZC wholesale Oversized valves are hardcoat anodizedOE OEM Part Number: F77Z 7D021 ZA Fitment Type: Direct Replacement Drive Type: 4WD Manufacturer Part Number: B82550 Brand: TransTec Manufacturer Warranty: Yes Items Included: Piston A4LD 4R44E 4R55E 5R55E Transmission Intermediate and Overdrive Band Servo Piston fits Ford and Mazda vehicles 1997 up (1) New Piston fits cover with ZC code (2. 317" ID Cover) Replaces Ford# F77Z 7D021 ZA
