Made in USA
Race Prepped GM TH400 Transmission Rated to 1200 HP
Product Discontinued
JEGSPART NUMBER: 555-60316

Race Prepped GM TH400 Transmission Rated to 1200 HP

Currently Unavailable

This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

GM TH400
Race Prepped GM TH400 Transmission
  • Rated up to 1200 HP
  • Billet Aluminum Valve Body with Internal Transbrake
  • Reverse Shift Pattern
  • Pro Mod 36 element sprag and Aluminum Drum
  • Deep Aluminum Pan
  • High Volume Pump
  • OEM Case & Tail Housing

    JEGS Race Prepped TH400 Transmission is equipped with a billet aluminum trans brake valve body that utilizes an internal solenoid, and a direct drum modified for instantaneous trans brake release. Rated to 1200 horsepower it is built with a Pro Mod 36-element sprag and aluminum drum, high-performance steels, precision clearance clutch packs, race-prepped OEM case and tail housing, deep aluminum pan, and shortened output shaft for unbeatable performance.

    Features:

    • Pro Mod 36 Element Sprag with hard coated aluminum drum
    • Billet Aluminum Transbrake valve body
    • Clutch packs & unit end play precision clearances for "low drag" friction-free performance
    • Race-prepped factory case and tail housing Deep aluminum pan for additional fluid capacity & cooling

    Note: Trans brake is wired to the kick-down connector on the driver's side of the case. Must engage trans brake to operate reverse.

  • Part TypeAutomatic Transmission
    BrandJEGS
    Package Height21.0
    Package Width21.5
    Package Length30.6
    Weight138.0 PG
    Part CategoryPerformance Parts
    Transmission Mfr.GM
    Flexplate Shield Built InNo
    Transmission Drive Type2WD
    First Gear Ratio (Automatic Transmissions)2.48
    Transmission Mfr. CodeTH400
    Yoke StyleSlip On
    Dipstick IncludedNo
    Clutch HubSteel
    Valve Body StyleFull manual
    Trans-Brake IncludedYes
    Tailshaft Length4 in (101.6 mm)
    Input Spline Quantity30 in (762 mm)
    Trans ModelTH400
    Transmission Pan TypeAluminum - Deep
    Torque Converter IncludedNo
    Fluid Fill LocationCase
    Case FinishBlack
    Transmission Shield Built InNo
    Safety RatingNot SFI Approved
    LockupNo
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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