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Lock-Up Switch Kit, 700R4 & 200R4 Transmission (55-57 Chevy Bel Air; 55-57 Chevy 150; 55-57 Chevy 210; 55-57 Chevy Nomad)

Item EK-57-261636-1
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$154.99

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      Product Information

      Features, Description, Q&A

      Features

      • Non-Computerized 700-R4 And 200-4R Lockup Switch Kit
      • Allows Installation Of Either Transmission Without The Factory Transmission Controller
      • Requires 1/4" NPT Threaded 4th Gear Pressure Port
      • Not All 700-R4 And 200-4R Transmissions Have The 4th Gear Pressure Port From Factory
      • Includes Pressure Switch And Inline Fuse
      • Fits 55-57 Chevy Bel Air; 55-57 Chevy 150; 55-57 Chevy 210; 55-57 Chevy Nomad

      Description

      Transmission Lockup Solution. The Lock-Up Switch Kit for 700R4 & 200R4 transmissions enables installation without the original factory transmission controller. This kit activates the torque converter lockup using the 4th gear pressure signal, enhancing drivability and fuel efficiency.

      Construction and Appearance. It includes a pressure switch and inline fuse housed in durable components designed to withstand heat and vibration common in automotive environments, ensuring reliable long-term performance.

      Installation. Installation requires confirming that the transmission has a 1/4" NPT threaded 4th gear pressure port, as drilling or modification may be necessary if the port is absent. The installation process is of moderate difficulty and intended for enthusiasts with basic mechanical skills.

      Application. This kit fits specific classic vehicles such as 55-57 Chevy Bel Air, 55-57 Chevy 150, 55-57 Chevy 210, and 55-57 Chevy Nomad. Verify transmission compatibility concerning the 4th gear pressure port requirement before installation.

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      4.8

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