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Motive Gear Ring & Pinion Gear Ratio: 3.89

Motive Gear F990389SP

683-F990389SP

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Estimated to ship directly from the manufacturer on 08/20/18
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Motive Gear Ring & Pinion Gear Ratio: 3.89 $561.60
Ring & Pinion Gear
  • Ratio: 3.89
  • Teeth: 35-9

  • Motive Gear F990389SP Details

    Ford 9" Performance

    Specifications:
  • 10-Bolt Dropout Cover
  • Ring Gear Diameter: 9"
  • Pinion Diameter: 1.313" 28-Splines
  • 9310 Steel

    Applications:
  • 1955 - 1979 Ford Thunderbird
  • 1957 - 1970 Ford Fairlane
  • 1957 - 1979 Ford Ranchero
  • 1958 - 1979 Lincoln Continental
  • 1959 - 1967 Ford Galaxie
  • 1962 - 1974 Ford Galaxie 500
  • 1963 - 1970 Mercury Marauder
  • 1964 - 1977 Mercury Comet
  • 1965 - 1973 Ford Mustang
  • 1965 - 1979 Ford LTD
  • 1966 - 1986 Ford Bronco
  • 1967 - 1978 Mercury Marquis
  • 1967 - 1979 Mercury Cougar
  • 1968 - 1971 Lincoln Mark III
  • 1968 - 1976 Ford Torino
  • 1968 - 1976 Mercury Montego
  • 1969 - 1974 Ford E-200 Econoline
  • 1969 - 1983 Ford E-100 Econoline
  • 1970 - 1977 Ford Maverick
  • 1972 - 1976 Ford Gran Torino
  • 1975 - 1978 Mercury Grand Marquis
  • 1975 - 1980 Ford Granada
  • 1975 - 1983 Ford E-100 Econoline Club Wagon
  • 1975 - 1983 Ford F-100
  • 1975 - 1986 Ford E-150 Econoline
  • 1975 - 1986 Ford E-150 Econoline Club Wagon
  • 1975 - 1986 Ford F-150
  • 1977 - 1979 Ford LTD II
  • 1977 - 1980 Lincoln Versailles

  • Specifications:

    Gear Ratio
    3.89
    Axle Type
    Ford 9 in.
    Ring Gear Tooth Quantity
    35
    Cover Bolt Quantity
    Dropout
    Ring Gear Diameter
    9
    Ring Gear Bolt Quantity
    10
    Pinion Shaft Diameter
    1.313
    Pinion Spline Count
    28
    Ring Gear Rotation
    Standard
    Pinion Gear Tooth Quantity
    9
    Ring Gear Material
    9310 Steel
    Manufacturer's Part Number:
    F990389SP

    Motive Gear Ring & Pinion Gears are the differential's critical point of power transfer, and they're one of the simplest performance modifications to complete on a vehicle. The Motive Ring & Pinion Gears are made with superior strength and quality and are excellent OE replacements for on street applications or off-road use.

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

    Does Motive Gear F990389SP fit your vehicle?

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    1982 FORD F-100

    • EngineType: ALL
    • SubModel: XLT LARIAT

    1984 FORD F-150

    • EngineType: ALL
    • SubModel: ALL

    1977 FORD F-150

    • EngineType: ALL
    • SubModel: BASE

    1969-1970 MERCURY MARAUDER

    • CC: 7014
    • Liter: 7.0
    • SubModel: X-100
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1972-1973 FORD GRAN TORINO

    • CC: 7030
    • Liter: 7.0
    • SubModel: SQUIRE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1970-1971 FORD MUSTANG

    • EngineType: ALL
    • SubModel: GRANDE

    1968 FORD TORINO

    • CC: 6997
    • Liter: 7.0
    • SubModel: GT
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1983 FORD F-150

    • EngineType: ALL
    • SubModel: BASE

    1969 FORD FAIRLANE

    • CC: 3277
    • Liter: 3.3
    • SubModel: BASE
    • CUI: 200
    • EngineType: L6 ( 3.3 L / 200 )

    1969-1970 MERCURY MARAUDER

    • CC: 7030
    • Liter: 7.0
    • SubModel: X-100
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1963 FORD THUNDERBIRD

    • CC: 6654
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 406
    • EngineType: V8 ( 6.6 L / 406 )

    1970 MERCURY COMET

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1965-1967 FORD LTD

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1968-1969 FORD FAIRLANE

    • CC: 7014
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1966 FORD RANCHERO

    • EngineType: ALL
    • SubModel: CUSTOM

    1970-1971 FORD MUSTANG

    • Liter: 5.0
    • SubModel: MACH I
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1975-1977 FORD F-100

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968-1971 LINCOLN MARK III

    • EngineType: ALL
    • SubModel: ALL

    1968 MERCURY COMET

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1978 FORD F-150

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1971-1973 MERCURY MARQUIS

    • EngineType: ALL
    • SubModel: ALL

    1968 FORD FAIRLANE

    • CC: 3278
    • Liter: 3.3
    • SubModel: BASE
    • CUI: 200
    • EngineType: L6 ( 3.3 L / 200 )

    1968-1969 MERCURY MARQUIS

    • EngineType: ALL
    • SubModel: ALL

    1963 FORD THUNDERBIRD

    • Liter: 6.7
    • SubModel: BASE
    • CUI: 410
    • EngineType: V8 ( 6.7 L / 410 )

    1971-1972 MERCURY COUGAR

    • EngineType: ALL
    • SubModel: ALL

    1970 MERCURY COMET

    • CC: 5752
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1968-1972 FORD LTD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 MERCURY MONTEGO

    • CC: 4727
    • Liter: 4.7
    • SubModel: MX
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1962-1964 FORD GALAXIE

    • CC: 3655
    • Liter: 3.6
    • SubModel: BASE
    • CUI: 223
    • EngineType: L6 ( 3.6 L / 223 )

    1973 FORD GRAN TORINO

    • CC: 5753
    • Liter: 5.8
    • SubModel: SPORT
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1976 FORD F-100

    • Liter: 6.4
    • SubModel: RANGER
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1968-1969 MERCURY MONTEGO

    • Liter: 5.0
    • SubModel: MX
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 FORD RANCHERO

    • CC: 3277
    • Liter: 3.3
    • SubModel: GT
    • CUI: 200
    • EngineType: L6 ( 3.3 L / 200 )

    1971 FORD MUSTANG

    • CC: 5753
    • Liter: 5.8
    • SubModel: MACH I
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975 FORD F-100

    • CC: 6391
    • Liter: 6.4
    • SubModel: CUSTOM
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1969 FORD THUNDERBIRD

    • CC: 7014
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1977-1980 LINCOLN VERSAILLES

    • EngineType: ALL
    • SubModel: ALL

    1960 FORD GALAXIE

    • EngineType: ALL
    • SubModel: SPECIAL

    1962 FORD RANCHERO

    • Liter: 2.8
    • SubModel: BASE
    • CUI: 170
    • EngineType: L6 ( 2.8 L / 170 )

    1968-1969 MERCURY COMET

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1983 FORD F-100

    • EngineType: ALL
    • SubModel: ALL

    1969-1970 MERCURY COUGAR

    • EngineType: ALL
    • SubModel: BOSS 302

    1977 FORD F-100

    • Liter: 5.8
    • SubModel: NORTHLAND
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1969 MERCURY MONTEGO

    • CC: 7014
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1972-1973 FORD E-100 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: CLUB WAGON
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1968 MERCURY MONTEGO

    • CC: 3278
    • Liter: 3.3
    • SubModel: BASE
    • CUI: 200
    • EngineType: L6 ( 3.3 L / 200 )

    1976 FORD F-150

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1967 FORD BRONCO

    • EngineType: ALL
    • SubModel: ALL

    1981 FORD F-100

    • CC: 4917
    • Liter: 4.9
    • SubModel: RANGER XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975-1978 MERCURY MARQUIS

    • EngineType: ALL
    • SubModel: ALL

    1957-1962 FORD FAIRLANE

    • CC: 3655
    • Liter: 3.6
    • SubModel: BASE
    • CUI: 223
    • EngineType: L6 ( 3.6 L / 223 )

    1970 MERCURY MARQUIS

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1973 FORD THUNDERBIRD

    • CC: 7030
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1975-1976 MERCURY COUGAR

    • EngineType: ALL
    • SubModel: ALL

    1983 FORD E-100 ECONOLINE

    • EngineType: ALL
    • SubModel: XL

    1962-1963 FORD FAIRLANE

    • CC: 3622
    • Liter: 3.6
    • SubModel: BASE
    • CUI: 221
    • EngineType: V8 ( 3.6 L / 221 )

    1970 MERCURY COMET

    • CC: 5752
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1979-1980 FORD E-150 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1971 FORD MUSTANG

    • EngineType: ALL
    • SubModel: BOSS 351

    1975-1981 FORD F-150

    • EngineType: ALL
    • SubModel: RANGER XLT

    1975-1976 FORD GRAN TORINO

    • EngineType: ALL
    • SubModel: ALL

    1973-1974 FORD LTD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 MERCURY MONTEGO

    • CC: 4727
    • Liter: 4.7
    • SubModel: MX
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1973-1974 FORD GRAN TORINO

    • CC: 6556
    • Liter: 6.6
    • SubModel: BROUGHAM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1968 FORD RANCHERO

    • CC: 6391
    • Liter: 6.4
    • SubModel: GT
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1967 FORD GALAXIE

    • CC: 3933
    • Liter: 3.9
    • SubModel: BASE
    • CUI: 240
    • EngineType: L6 ( 3.9 L / 240 )

    1973 MERCURY MONTEGO

    • CC: 4097
    • Liter: 4.1
    • SubModel: MX BROUGHAM
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1972-1974 FORD GRAN TORINO

    • Liter: 5.0
    • SubModel: SQUIRE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968-1969 FORD MUSTANG

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1975-1979 FORD THUNDERBIRD

    • EngineType: ALL
    • SubModel: ALL

    1975-1977 FORD F-100

    • CC: 4917
    • Liter: 4.9
    • SubModel: RANGER
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1973 MERCURY MONTEGO

    • EngineType: ALL
    • SubModel: GT

    1968 FORD MUSTANG

    • EngineType: ALL
    • SubModel: SHELBY GT-500KR

    1973 MERCURY COUGAR

    • CC: 5753
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1973 MERCURY MONTEGO

    • CC: 6556
    • Liter: 6.6
    • SubModel: VILLAGER
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975 FORD F-100

    • CC: 6391
    • Liter: 6.4
    • SubModel: RANGER
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1968-1969 FORD MUSTANG

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1969 MERCURY MONTEGO

    • CC: 5753
    • Liter: 5.8
    • SubModel: MX
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1964-1968 FORD THUNDERBIRD

    • EngineType: ALL
    • SubModel: ALL

    1975-1977 FORD F-100

    • Liter: 5.0
    • SubModel: NORTHLAND
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1970 FORD MUSTANG

    • CC: 5753
    • Liter: 5.8
    • Aspiration: N
    • SubModel: MACH I
    • Engine Vin: H
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1977 FORD F-100

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1969-1970 FORD GALAXIE 500

    • CC: 5753
    • Liter: 5.8
    • SubModel: XL
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1969 FORD THUNDERBIRD

    • CC: 7030
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1971-1977 MERCURY COMET

    • EngineType: ALL
    • SubModel: ALL

    1962-1967 FORD GALAXIE 500

    • EngineType: ALL
    • SubModel: ALL

    1985-1986 FORD F-150

    • EngineType: ALL
    • SubModel: XLT LARIAT

    1965 FORD RANCHERO

    • Liter: 2.8
    • SubModel: BASE
    • CUI: 170
    • EngineType: L6 ( 2.8 L / 170 )

    1966-1969 MERCURY COMET

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1978 FORD F-150

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1979-1980 FORD E-150 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: CUSTOM
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1972 FORD GRAN TORINO

    • EngineType: ALL
    • SubModel: BASE

    1978-1980 FORD F-100

    • EngineType: ALL
    • SubModel: RANGER XLT

    1976-1977 FORD F-100

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1969-1970 MERCURY COUGAR

    • EngineType: ALL
    • SubModel: BOSS 429

    1974 MERCURY MARQUIS

    • CC: 6555
    • Liter: 6.6
    • SubModel: BROUGHAM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1978 FORD E-150 ECONOLINE CLUB WAGON

    • EngineType: ALL
    • SubModel: ALL

    1967-1968 FORD RANCHERO

    • EngineType: ALL
    • SubModel: 500

    1970-1977 FORD MAVERICK

    • EngineType: ALL
    • SubModel: ALL

    1975-1976 FORD F-100

    • Liter: 5.9
    • SubModel: NORTHLAND
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )
    Some parts are not legal for use in California or other states with similar laws / regulations