Output Shaft, 400 (11 3/4” Long)(W/350 Splines)
Part # 34678C
Type:
Shaft
Size:
11 3/4” Long
Data as of:
2026-10-17
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Cross-reference numbers
| Number | System | Status |
|---|---|---|
| 34678C | WIT | ✓ catalog |
Where it fits
| Diagram | Position | Transmission page |
|---|---|---|
| 3L80 | 678 | 3L80 |
| 4L80E | 678 | 4L80E |
Other parts in 3L80 position 678:
- 34678 Output Shaft, 400 (Cadillac, Long) 1964-Up
- 34678A Output Shaft, 375 (15” Long)(Uses a Speed-O Gear) 1964-Up
- 34678AA Output Shaft, 375 (15” Long)(Uses a Electric Pick-Up)
- 34678B Output Shaft, 400 (15” Long) 1964-Up
- 34678D Output Shaft, 400 2wd & Some 4x4 (9” Long, W/Rubber O-Ring Groove)
- 34678E Output Shaft, 400 2wd (9” Long, W/Out Rubber O-Ring Groove)
- 34678EA Output Shaft, 400 Truck (9” Long, Bolt-On Type Yoke)(Uses Plastic Speed-O Gear)
- 34678EB Output Shaft, 400 Truck (9” Long, Bolt-On Type Yoke)(Uses Steel Speed-O Gear)
- 34678EC Output Shaft, 400 Truck (9” Long, Bolt-On Type Yoke)(W/Electronic Pick-up)
- 34678F Output Shaft, 400 4x4 (Jeep)(Coarse Splines)
- and 19 more
Other parts in 4L80E position 678:
- 34678 Output Shaft, 400 (Cadillac, Long) 1964-Up
- 34678A Output Shaft, 375 (15” Long)(Uses a Speed-O Gear) 1964-Up
- 34678AA Output Shaft, 375 (15” Long)(Uses a Electric Pick-Up)
- 34678B Output Shaft, 400 (15” Long) 1964-Up
- 34678D Output Shaft, 400 2wd & Some 4x4 (9” Long, W/Rubber O-Ring Groove)
- 34678E Output Shaft, 400 2wd (9” Long, W/Out Rubber O-Ring Groove)
- 34678EA Output Shaft, 400 Truck (9” Long, Bolt-On Type Yoke)(Uses Plastic Speed-O Gear)
- 34678EB Output Shaft, 400 Truck (9” Long, Bolt-On Type Yoke)(Uses Steel Speed-O Gear)
- 34678EC Output Shaft, 400 Truck (9” Long, Bolt-On Type Yoke)(W/Electronic Pick-up)
- 34678F Output Shaft, 400 4x4 (Jeep)(Coarse Splines)
- and 19 more
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