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Piston, 400/4L80E Rear Servo (Heavy Duty) 1964-Up (Adapt-A-Case)

Piston, 400/4L80E Rear Servo (Heavy Duty) 1964-Up (Adapt-A-Case) — Part # 34912AAC
Part # 34912AAC
Type:
Case, piston, servo
Transmissions:
3L80, 4L80E, 4L85E
Years:
1964-Up
Data as of:
2026-10-17

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Cross-reference numbers

NumberSystemStatus
34912AACWIT✓ catalog

Where it fits

DiagramPositionTransmission page
3L809123L80
4L80E9124L80E
Other parts in 3L80 position 912:
  • 34912 Piston, 400/4L80E Rear Servo 1964-Up
  • S34912A5K Spacer Kit, 4L80E Reverse Servo Piston 1996-Up (Sonnax)(Contains: 1 Spacer, 2 Washers & 1 E-Clip)
Other parts in 4L80E position 912:
  • 34912 Piston, 400/4L80E Rear Servo 1964-Up
  • S34912A5K Spacer Kit, 4L80E Reverse Servo Piston 1996-Up (Sonnax)(Contains: 1 Spacer, 2 Washers & 1 E-Clip)
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