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.

The TCI Auto Automatic Transmissions 471800P8 is an electronic 4x four-speed automatic transmission package built for compatible Big Block Ford applications. Identified by Manufacturer’s Part Number 471800P8, Summit Racing Part Number TCI-471800P8, and UPC 00788120157704, this automatic transmission assembly is a strong option for vehicle owners, mechanics, performance builders, restoration shops, and drivetrain specialists who need a part-number-specific transmission package with proper fitment confirmation before ordering.

The TCI Auto Automatic Transmissions 77884671PX1 is a Pro-X Powerglide automatic transmission built for performance and racing applications that require accurate part-number matching, strong drivetrain planning, and proper compatibility confirmation before ordering. Listed as PRO-X P/G DED 1.80 SC 743510, this transmission is designed for drag racers, race teams, performance builders, chassis shops, mechanics, and drivetrain specialists who need a serious TCI Powerglide transmission configuration for a compatible racing or high-performance setup.

TCI Competition Transmissions 112000 is a remanufactured 3-speed automatic transmission designed for drag-racing and high-performance applications. Built by TCI Auto, this Mopar-pattern transmission features a full-manual valve body, 2.45 first-gear ratio, 24-spline input, and OEM-style aluminum case for applications requiring direct driver-controlled shifting.