42RE/A500 Overdrive Assembly 12770ECK (10 7/8” Long)
Catalog name:
Overdrive Assembly, A500 4x4 (10 7/8” Long) No Governor (Holds 4 or 6 Overdrive Clutch) (W/Speed Sensor) W/3 Mounting…
Part # 12770ECK
Type:
Clutch, kit
Transmissions:
Size:
10 7/8” Long
Data as of:
2026-10-17
Offers
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Cross-reference numbers
| Number | System | Status |
|---|---|---|
| 12770ECK | WIT | ✓ catalog |
Where it fits
| Diagram | Position | Transmission page |
|---|---|---|
| 30RH | 770 | — |
| 42RE | 770 | 42RE |
| 46RE | 770 | — |
| TF8 | 770 | TF8 |
Other parts in 30RH position 770:
- 12770 Extension Housing, A904 (14 3/4”) 1966-Up
- 12770A Extension Housing, A904 4x4 Eagle 1979-Up (Snap Ring Cover On Bottom)
- 12770AA Extension Housing, A904 2WD (14 3/4”) Long Snap Ring Cover On Passenger Side
- 12770B Extension Housing, A500 2WD (Speed-O Gear Type)
- 12770BK Overdrive Assembly, A500 2WD Governor Type (W/Speed-O) No Sensor (4 Gear Planet)
- 12770C Extension Housing, A500 4x4 (15 7/8” Long) (No Speed-O) No Sensor (Uses A Rear Seal) (Uses A 2 Bolt Mount)…
- 12770CK Overdrive Assembly, A500 4x4 (15 7/8” Long) Governor Type (No Speed-O) No Sensor (Uses A Rear Seal)…
- 12770CA Extension Housing, A500 4x4 (15 7/8” Long) (No Speed-O) No Sensor (No Rear Seal) (With .637” Wide Park Pawl)
- 12770CB Extension Housing, A500 4x4 (15 7/8” Long) (No Speed-O) No Sensor (Uses A Rear Seal) (Uses A 3 Bolt Mount)…
- 12770CBK Overdrive Assembly, A500 4x4 (15 7/8” Long) Governor Type (No Speed-O) No Sensor (Uses A Rear Seal)…
- and 13 more
Other parts in 42RE position 770:
- 12770 Extension Housing, A904 (14 3/4”) 1966-Up
- 12770A Extension Housing, A904 4x4 Eagle 1979-Up (Snap Ring Cover On Bottom)
- 12770AA Extension Housing, A904 2WD (14 3/4”) Long Snap Ring Cover On Passenger Side
- 12770B Extension Housing, A500 2WD (Speed-O Gear Type)
- 12770BK Overdrive Assembly, A500 2WD Governor Type (W/Speed-O) No Sensor (4 Gear Planet)
- 12770C Extension Housing, A500 4x4 (15 7/8” Long) (No Speed-O) No Sensor (Uses A Rear Seal) (Uses A 2 Bolt Mount)…
- 12770CK Overdrive Assembly, A500 4x4 (15 7/8” Long) Governor Type (No Speed-O) No Sensor (Uses A Rear Seal)…
- 12770CA Extension Housing, A500 4x4 (15 7/8” Long) (No Speed-O) No Sensor (No Rear Seal) (With .637” Wide Park Pawl)
- 12770CB Extension Housing, A500 4x4 (15 7/8” Long) (No Speed-O) No Sensor (Uses A Rear Seal) (Uses A 3 Bolt Mount)…
- 12770CBK Overdrive Assembly, A500 4x4 (15 7/8” Long) Governor Type (No Speed-O) No Sensor (Uses A Rear Seal)…
- and 13 more
Other parts in 46RE position 770:
- 22770 Extension Housing, A727 2WD (18 1/2”) W/Out Weight Bracket Holes (Snap Ring Retainer On Bottom Of Housing) 1966-Up
- 22770A Extension Housing, A727 2WD (18 1/2”) With Weight Bracket Holes 1966-Up
- 22770AA Extension Housing, A727 2WD (18 1/2”) W/Out Weight Bracket Holes (Snap Ring Retainer On Side Of Housing)
- 22770AB Extension Housing, A727 2WD (Push Button) Bolt On Flange 1962-64
- 22770AC Extension Housing, A727 2WD (Push Button) Slip On Yoke 1965
- 12770B Extension Housing, A500 2WD (Speed-O Gear Type)
- 12770BK Overdrive Assembly, A500 2WD Governor Type (W/Speed-O) No Sensor (4 Gear Planet)
- 22770B Extension Housing, A727 2WD (8” Long) Bolt On Yoke Type (2 1/2”OD Rear Seal)
- 22770BA Extension Housing, A727 2WD (8 1/4” Long) Bolt On Yoke Type (2 3/4”OD Rear Seal)
- 12770C Extension Housing, A500 4x4 (15 7/8” Long) (No Speed-O) No Sensor (Uses A Rear Seal) (Uses A 2 Bolt Mount)…
- and 28 more
Other parts in TF8 position 770:
- 22770 Extension Housing, A727 2WD (18 1/2”) W/Out Weight Bracket Holes (Snap Ring Retainer On Bottom Of Housing) 1966-Up
- 22770A Extension Housing, A727 2WD (18 1/2”) With Weight Bracket Holes 1966-Up
- 22770AA Extension Housing, A727 2WD (18 1/2”) W/Out Weight Bracket Holes (Snap Ring Retainer On Side Of Housing)
- 22770AB Extension Housing, A727 2WD (Push Button) Bolt On Flange 1962-64
- 22770AC Extension Housing, A727 2WD (Push Button) Slip On Yoke 1965
- 12770B Extension Housing, A500 2WD (Speed-O Gear Type)
- 12770BK Overdrive Assembly, A500 2WD Governor Type (W/Speed-O) No Sensor (4 Gear Planet)
- 22770B Extension Housing, A727 2WD (8” Long) Bolt On Yoke Type (2 1/2”OD Rear Seal)
- 22770BA Extension Housing, A727 2WD (8 1/4” Long) Bolt On Yoke Type (2 3/4”OD Rear Seal)
- 12770C Extension Housing, A500 4x4 (15 7/8” Long) (No Speed-O) No Sensor (Uses A Rear Seal) (Uses A 2 Bolt Mount)…
- and 28 more
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