A4LD Extension Housing 56770B (Speed-O Hole Is 5 3/4” From Rear Seal, On Drivers Side)
Catalog name:
Extension Housing, A4LD/4R44E/4R55E 2WD (Speed-O Hole Is 5 3/4” From Rear Seal, On Drivers Side) 1985-Up…
Part # 56770B
Type:
Housing, seal
Years:
1985-Up
Size:
Speed-O Hole Is 5 3/4” From Rear Seal, On Drivers Side
Data as of:
2026-10-17
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Cross-reference numbers
| Number | System | Status |
|---|---|---|
| E5TZ-7A039-C | OEM | ✓✓ confirmed by 2 sources |
| 56770B | WIT | ✓ catalog |
| 85GT-7A041-CA | Casting # | ✓ catalog |
| 56370BA | DACCO | ? unverified |
Where it fits
| Diagram | Position | Transmission page |
|---|---|---|
| A4LD | 770 | A4LD |
| C3 | 770 | — |
Other parts in A4LD position 770:
- 56770 Extension Housing, C-3 2WD (Speed-O Hole Is 5 3/4” From Rear Seal, On Drivers Side) 1974-87
- 56770A Extension Housing, C-3 2WD (Speed-O Hole Is 4 1/8” From Rear Seal, On Drivers Side) 1974-87
- 56770BA Extension Housing, 4R44E/4R55E 2WD (Speed-O Hole Is 5 3/4” From Rear Seal, On Drivers Side) 1995-Up…
- 56770BC Extension Housing, A4LD/4R44E/4R55E 2WD (No Speed-O Hole) 1990-Up
- 56770C Extension Housing, A4LD/4R44E/4R55E 4x4 (Cast # 85GT) 1985-Up
- 56770CA Extension Housing, A4LD/4R44E/4R55E 4x4 (Cast # 90GT) 1990-Up
Other parts in C3 position 770:
- 56770 Extension Housing, C-3 2WD (Speed-O Hole Is 5 3/4” From Rear Seal, On Drivers Side) 1974-87
- 56770A Extension Housing, C-3 2WD (Speed-O Hole Is 4 1/8” From Rear Seal, On Drivers Side) 1974-87
- 56770BA Extension Housing, 4R44E/4R55E 2WD (Speed-O Hole Is 5 3/4” From Rear Seal, On Drivers Side) 1995-Up…
- 56770BC Extension Housing, A4LD/4R44E/4R55E 2WD (No Speed-O Hole) 1990-Up
- 56770C Extension Housing, A4LD/4R44E/4R55E 4x4 (Cast # 85GT) 1985-Up
- 56770CA Extension Housing, A4LD/4R44E/4R55E 4x4 (Cast # 90GT) 1990-Up
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