Fluid Capacities

Transmission Dimensions

Speedmaster's rebuilt TH400 performance transmission is a complete ready-to-run high-performance transmission designed for street and mild strip use. Each transmission goes thorough a complete teardown for inspection of all components.

• Inspection of all bands, bushings, and clutches
• All worn or potentially weak components are replaced to ensure longevity
• The bare transmission case is pressure washed and passages are cleaned using compressed air
• Transmission case is inspected for cracks, pinholes or wear
• The valve body and any parts that are to be reused are thoroughly cleaned and inspected
• Valve body surfaces are checked and machined as necessary
• Valves are checked for drag to ensure correct smooth operation
• All new gaskets and external seals
• Upgraded Corvette Servo for improved shifting

Features:

• Complete ready-to-run high-performance transmission
• Automatic/manual valve body
• Standard shift pattern
• 550 HP / 450 ft.-lbs. rating
• Mechanical speedometer connection
• Aluminum transmission casing
• Aluminum transmission pan
• Accepts splined torque converter
• 15/42 drive/driven gear
• 4.000 in. tail shaft length
• 30 splined hardened steel input shaft
• First gear ratio: 2.48
• Second gear ratio: 1.48
• Third gear ratio: 1.00
• Reverse gear ratio: 2.08
• Includes new servo assembly, boost valve, pressure regulator valve and governor with gear
• Includes cooler line fittings
• Note:
  • Does not replace 4L60E transmission applications
  • Non-electric shift
  • Torque converter not included
  • For 2 wheel drive vehicles only