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Doug Nash Overdrive

Doug Nash 4+1 Overdrive Standard Transmission Rebuild Kits and Parts

The Doug Nash 4+1 with push button overdrive is an interesting transmission that was built and designed by former Detroit hot-rod racer, Doug Nash. Having been designed by a hot rod racer, it should come as no surprise that the 4+1 Overdrive was primarily designed to be used in race vehicles. However, it is capable of being used for street purposes as well. It is seen as a reliable transmission for all sorts of vehicles among home and professional mechanics alike.

Doug Nash Overdrive Transmission History

The transmissions were incredibly successful. So successful in fact that Chevrolet approached Doug Nash to include his 4+3 transmission (four speed manual transmissions with overdrive for the top three gears) in the 1984 to 1988 Corvettes.

The transmission was supplanted by the ZF six speed manual transmission.

Shop Doug Nash transmission parts including Overdrive, bearing, gasket, and seal kits at Cobra Transmission. Here you'll find overdrive master kits, overdrive gasket and seal kits, as well as, Overdrive banner kits, Overdrive syncro kits, pan and plate gaskets for sale.

  • Doug Nash Overdrive, MK2, MH5 Banner Kit

    Doug Nash Overdrive, MK2, MH5 Banner Kit

    Doug Nash Overdrive,  MH5, MK2 Banner Rebuild Kit (This kit does not include parts for the standard section of the unit.) (For the standard section please search for BK185) (K3000L/S) Kit Includes: Seals, Orings, Gaskets, Sealing Rings & Friction...

    Part #: IPN6-K3000W/O (194004)-001
    $385.99
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  • Bearing, Gasket and Seal Kit (BK185)

    Bearing, Gasket and Seal Kit (BK185)

    Doug Nash Overdrive, Bearing, Gasket and Seal Kit T10N For Standard Section (For Automatic Section please see part number 194006) (4 Speed) (Super T10 & Corvette 4+3) (Trans used w/ Nash OD) (1984-1988) Part number 384268A (Output Bearing) is...

    Part #: BK185-001
    $143.99
    Add to Cart
  • Doug Master Kit

    Doug Nash Overdrive Master Kit (84-85)

    This kit does not include parts for the standard section of the unit. (For the standard section please search for BK185) Doug Nash Overdrive, Overhaul Kit w/ Frictions & Steels (.071" Steels) (K3000A) 

    Part #: 194006
    $387.99
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  • Doug Nash Overdrive Master Kit (86-Up)

    Doug Nash Overdrive Master Kit (86-Up)

    This kit does not include parts for the standard section of the unit. (For the standard section please search for BK185) Doug Nash Overdrive, Overhaul Kit w/ Frictions & Steels (.061" Steels) (K3000)

    Part #: 194006B-001
    $431.99
    Add to Cart
  • Synchro, Bearing, Gasket and Seal Kit (BK185WS)

    Synchro, Bearing, Gasket and Seal Kit (BK185WS)

    Super T10, Doug Nash Overdrive, Synchro & Bearing, Gasket and Seal Kit T10N For Standard Section (For Automatic Section please see part number 194006) (4 Speed) (Super T10 & Corvette 4+3) (Transmission used w/ Nash OD) (1984-1988)Part number...

    Part #: BK185WS-001
    $135.99
    Add to Cart
  • Synchronizer Kit (SRK118)

    Synchronizer Kit (SRK118)

    Doug Nash Overdrive, T10, Super T10 Standard Transmission Synchronizer Kit T10N (4 Speed) (Super T10 & Corvette 4+3) (Trans used w/ Nash OD) (84-88)

    Part #: SRK118
    $26.99
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  • Extension Housing Bushing (Babbitt) (44066)

    Extension Housing Bushing (Babbitt) (44066)

    Transmission & Transfer Case Extension Housing (Babbitt) (27 Splines) (1.500" ID, 1.630" OD) (WT266-62) (3717682) (8008A) (01755) 200, 200C 1976-1987 200-4R 1981-UP Doug Nash MH5, MK2 1984-UP T10, Super T10 180, 180C 1969-UP 350, 350C 1969-1986 T4 (4...

    Part #: 44066
    $13.99
    Add to Cart
  • Seal (18070)

    Seal (18070)

    Doug Nash Overdrive Front & Overdrive Seal (In Plate) (17754)

    Part #: 18070
    $2.99
    Add to Cart
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