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The Summit Racing™ Automatic Transmissions SUM-700700X is a 4-speed remanufactured Chevy automatic transmission designed for compatible replacement, street-performance, cruiser, and mild performance applications. This Summit Racing automatic transmission features a Chevy bellhousing bolt pattern, automatic valve body, lockup compatibility, 30-spline steel input shaft, 3.06 first gear ratio, stock polished aluminum pan, slip-on yoke style, OEM gray aluminum case, included throttle valve cable, and dyno-tested remanufactured construction.Add to cart
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The Summit Racing Performance Transmission SUM-700380-SFI is a high-performance automatic transmission designed for vehicles that require dependable power transfer, consistent shifting, and strong drivetrain durability. Built for performance applications and street-driven vehicles, this transmission system provides reliable gear changes and the strength required to handle increased horsepower and torque.Add to cart
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The Summit Racing™ Performance Transmissions SUM-700382 is a remanufactured 3-speed automatic transmission designed for high-performance applications requiring a 1,200 horsepower-rated transmission, full-manual control, and an integrated trans-brake. It combines upgraded internal components with a deep aluminum pan and performance-oriented hydraulic components for demanding street, strip, and racing applications.Add to cart
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The TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages 271701P36 is a 6-speed remanufactured automatic transmission kit built around the GM 4L80E platform and configured for compatible Gen III Hemi / Mopar bellhousing applications. Rated for 850 horsepower, this TCI 6x package includes a Gen III Hemi bellhousing, flexplate, EZ-TCU transmission controller and harnesses, TCI Outlaw shifter, transmission cooler, dipstick, and 12 qt. of transmission fluid.Add to cart
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The TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages 271701P39 is a professionally remanufactured high-performance transmission package engineered for serious street, pro touring, and racing applications. Capable of handling up to 850 horsepower, this advanced 6-speed automatic transmission combines the legendary durability of the 4L80E platform with modern overdrive technology, electronic control, and enhanced gear ratios for improved acceleration and cruising efficiency. Supplied as a complete package with controller, wiring harness, cooler, paddle shifter, and supporting components, it offers a comprehensive drivetrain solution for high-performance vehicle builds.Add to cart
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The TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages 271701P40 is a remanufactured 6-speed automatic transmission package built for compatible small block Ford applications that need modern gear spacing, strong performance capacity, and included electronic-control support. Rated for 850 advertised horsepower, this kit includes a small block Ford bellhousing, 50 oz. external balance flywheel, EZ-TCU transmission controller and harnesses, transmission cooler, 12 quarts of transmission fluid, dipstick, and a chrome stock-style steel pan. The torque converter and shifter are not included.Add to cart
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The TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages 271701P9 is a high-performance electronically controlled automatic transmission designed for powerful street, pro-touring, and racing vehicles. Based on the proven GM 4L80E platform, this advanced transmission package delivers six forward gears and is engineered to handle engines producing up to approximately 850 horsepower, making it suitable for demanding high-performance builds.Add to cart
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The TCI 6x 6-Speed GM 4L80E Automatic Transmissions 271700 is a remanufactured 6-speed automatic transmission built for compatible GM/Chevy small block, big block, and LS Series engine applications that need strong performance, modern gear spacing, and lockup-compatible drivability. Rated for 850 advertised horsepower, this transmission features a Chevy bellhousing bolt pattern, automatic valve body, six forward gears, 2.97 first gear ratio, 0.75 overdrive gear, slip-on yoke style, and an OEM-style aluminum case. The TCI EZ-TCU controller and harness are required for operation.Add to cart
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The TCI Auto Automatic Transmissions 212507PX1 is a Pro-X TH40 automatic transmission built for performance-focused applications where accurate part-number matching, proper drivetrain compatibility, and professional installation planning are important before ordering. Identified by Manufacturer’s Part Number 212507PX1, Summit Racing Part Number TCI-212507PX1, and UPC 788120046220, this transmission is a strong option for performance builders, mechanics, race-prep garages, custom vehicle shops, and drivetrain specialists who need a compatible TCI Pro-X automatic transmission for their vehicle setup.Add to cart
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The TCI Auto Automatic Transmissions 371700P12 is a 4X Four-Speed transmission package built around a non-electronic, 700R4-based automatic transmission for externally balanced Small Block Ford applications. It is designed to provide a practical GM-style overdrive transmission solution for compatible Ford engines while supporting up to 550 horsepower.Add to cart
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The TCI Auto Automatic Transmission 371800P1 is a performance-built automatic transmission package designed for high-power street rods and custom performance vehicles. Built on the proven 700R4 transmission platform, this transmission delivers reliable shifting, strong torque handling, and durable construction. It is engineered for demanding street and performance applications where dependable drivetrain performance is essential.Add to cart
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