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42RE/A500 Overdrive Assembly 12770EAK (10 7/8” Long)

Catalog name:
Overdrive Assembly, A500 4x4 (10 7/8” Long) No Governor (No Speed-O) W/Sensor (W/ 1/2” Pilot On End Of Shaft) W/Side…
Overdrive Assembly, A500 4x4 (10 7/8” Long) No Governor (No Speed-O) W/Sensor (W/ 1/2” Pilot On End Of Shaft) W/Side… — Part # 12770EAK
Part # 12770EAK
Type:
Sensor, kit
Transmissions:
30RH, 32RH, 37RH, 40RH, 42RE, 42RH, 44RE, 46RE, 46RH, 47RE, 47RH, 48RE, A618, A998, TF8
Size:
10 7/8” Long; W/ 1/2” Pilot On End Of Shaft
Data as of:
2026-10-17

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Cross-reference numbers

NumberSystemStatus
12770EAKWIT✓ catalog

Where it fits

DiagramPositionTransmission page
30RH770—
42RE77042RE
46RE770—
TF8770TF8
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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