T5 5-Speed Conversion Package | 1937-1940 Ford Flathead 59A | Clevis Cross Shaft

T5 5-Speed Conversion Package | 1937-1940 Ford Flathead 59A | Clevis Cross Shaft

T5 5-Speed Conversion Package | 1937-1940 Ford Flathead 59A | Clevis Cross Shaft

Description

Key Features

  • TREMEC T5 transmission with 300 lb-ft torque capacity and 0.63:1 overdrive - ideal match for flathead V8 power levels
  • 2.95:1 first gear ratio delivers strong launches; deep overdrive drops highway RPM for quieter cruising and reduced engine wear
  • Ultra-compact 75 lbs. dry weight fits most factory tunnels without major floor modifications
  • Custom front-shift T5 configuration positions the shifter forward to match original transmission location
  • Clevis housing cross shaft clutch linkage integration for 1937-1940 Ford cars and trucks
  • Compatible with 59A flathead engines featuring integral bellhousing design
  • 10-inch long pattern diaphragm clutch options sized specifically for 59A half-bell ring configuration
  • Comprehensive component selection includes transmission, adapters, clutch, flywheel, shifter, and driveline hardware

Description

Adding modern five-speed performance to a 1937-1940 Ford flathead presents unique challenges. The 59A engine block features an integral bellhousing with a half-bell ring cast over the flywheel, requiring specialized adapters and clutch components that most generic conversion kits simply cannot accommodate. This T5 conversion package solves those fitment problems with purpose-built components engineered specifically for the clevis housing cross shaft clutch release system found in these vintage Fords.

The TREMEC T5 is the perfect transmission choice for flathead-powered vehicles. With 300 lb-ft of torque capacity, this compact five-speed handles everything a well-built flathead V8 can deliver. The 2.95:1 first gear provides strong acceleration from a stop, while the 0.63:1 overdrive fifth gear dramatically reduces cruising RPM - lowering engine temperatures, improving fuel economy, and making highway drives genuinely enjoyable. At just 75 lbs. dry, the T5 is TREMEC's smallest and lightest offering, making it ideal for tight engine compartments and factory transmission tunnels where space is at a premium.

MDL's custom front-shift T5 configuration moves the shifter forward to match the original transmission position, maintaining comfortable reach and period-correct appearance. The adapter system preserves the clevis-style cross shaft clutch release mechanism - a design Ford used across 1937-1940 cars and trucks where an extension rod and lever mounted closer to the frame operate the clutch fork. Because the 59A block's half-bell ring design limits clutch size, this package includes 10-inch long pattern diaphragm clutch options specifically engineered for proper fit and release.

This guided package builder walks you through every component selection: transmission, adapters, flywheel, clutch set, shifter configuration, shift knobs and levers, speedometer components, transmission mount, and driveline yoke. Each component is selected for proper compatibility with your 59A flathead application. Professional installation recommended for optimal results.

Package Components Available

  • TREMEC T5 5-speed transmission with Ford V8 gearing and front shifter configuration
  • Ford flathead transmission adapter with clevis cross shaft design
  • 10-inch long pattern clutch sets (organic, Kevlar, or dual-friction options)
  • Ford flathead flywheel options (1932-1948 or 1949-1953 patterns)
  • ARP flywheel bolt set
  • Flathead pressure plate bolt set
  • Custom shifter options (Hurst and MDL designs with multiple lever lengths)
  • Shift knob selections (standard and custom Retro-Fit options)
  • Thread reducer adapters for shift knob compatibility
  • Lokar shift boot options
  • Speedometer cable and driven gear selection
  • Speedometer gear retaining clip
  • Transmission mount
  • Drive shaft yoke options (1310, 1330, or 1350 series, 28-spline)
  • ATF transmission fluid (3 quarts - Dexron III recommended)
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