TREMEC TKX 5-Speed Conversion Package | 1962-1965 Chevy II Nova | Small Block

TREMEC TKX 5-Speed Conversion Package | 1962-1965 Chevy II Nova | Small Block

TREMEC TKX 5-Speed Conversion Package | 1962-1965 Chevy II Nova | Small Block

Description

Key Features

  • 600 lb-ft torque capacity handles serious small block power with 8,000 RPM engine speed capability and 7,500 RPM shift points
  • 26-spline input shaft with 31-spline output shaft for maximum strength and driveline compatibility
  • Multiple gear ratio options: wide ratio (3.27, 1.98, 1.34, 1.00, 0.72) or close ratio (2.87, 1.89, 1.28, 1.00, 0.68/0.81)
  • Compact end-loaded case design fits tighter transmission tunnels than previous TKO designs
  • Sintered bronze and carbon hybrid triple-cone synchronizers for superior high-RPM shift quality
  • Three-piece ribbed aluminum housing provides outstanding structural stiffness with gaskets at all flanges
  • Direct bolt-up to GM Muncie 3-speed and 4-speed bellhousing patterns
  • Complete customizable package includes transmission, bellhousing, clutch, hydraulics, and drivetrain components
  • Some tunnel modifications required for first-generation Chevy II applications

Description

Converting your '62-'65 Chevy II Nova from an automatic to a modern 5-speed manual delivers the engagement and control that only a stick shift provides. MDL's comprehensive TREMEC TKX package solves the common fitment challenges of first-generation Chevy II builds while delivering a transmission engineered from the ground up specifically for the aftermarket. The TKX represents a complete redesign versus the earlier TKO series, with a slimmer case profile, improved shift quality, and the same proven 600 lb-ft torque capacity that handles serious small block power.

The TKX's end-loaded architecture places the mid-plate between the main case and extension housing, supporting both the cluster and main shaft while reducing overall case height. This compact envelope improves tunnel clearance compared to previous 5-speed designs. Multi-cone synchronizers with hybrid sintered bronze and carbon rings deliver smooth, precise shifts even at elevated RPM, eliminating the notchy feel of older transmissions. All gears and shafts are machined from special-grade ASTM 4615 steel for increased torque-carrying capacity, while oversized gear widths extend service life under hard use.

Three shifter locations accommodate various interior configurations, and the standard high-performance short-throw billet aluminum shifter isolates road noise while delivering crisp, positive engagement. Built-in provisions for reverse light switch and cruise control safety switch simplify wiring. The TKX uses the same case mounting and crossmember locations as the TKO, making upgrades from earlier TREMEC 5-speeds straightforward. Recommended lubricants include TREMEC HP-MTF, Dexron-III, GM Synchromesh, Mobil 1 Synthetic ATF, or Pennzoil Synchromesh.

MDL's guided package selection walks you through choosing the optimal transmission variant, bellhousing, clutch system, flywheel, hydraulics, and supporting components for your specific build goals and budget. Our concierge service provides expert guidance at any point during selection to ensure correct part choices for your project requirements. Some upper tunnel modifications are required for proper TKX fitment in first-generation Chevy II applications.

What's Included

  • TREMEC TKX 5-speed transmission with your choice of gear ratios (wide or close ratio configurations)
  • Bellhousing options including aluminum and high-performance aluminum variants
  • Bellhousing block plate for proper transmission-to-bellhousing spacing
  • Hardware kit for aluminum or steel bellhousing installation
  • Flywheel selection for various small block applications and balances
  • ARP flywheel bolt set
  • Clutch kit with hydraulic release options from multiple manufacturers
  • Pilot bushing for proper input shaft alignment
  • Pressure plate bolt set with standard and ARP options
  • Clutch pedal assembly for automatic-to-manual conversion
  • Pedal pad kit in dual-bore or matching-bore configuration
  • Hydraulic master cylinder kit
  • Hydraulic release bearing for smooth clutch actuation
  • Hydraulic line assembly
  • Shift knob and ball options in multiple finishes including MDL-branded variants
  • Shift knob thread adapters for custom applications
  • Shift lever options from Hurst and custom manufacturers
  • Shift boot assembly
  • Speedometer cable adapter and driven gear selection
  • Speedometer gear retaining clip
  • Electronic speedometer sensor option
  • Reverse light wiring harness
  • Chevy II-specific transmission crossmember
  • Polyurethane transmission mount
  • Transmission fluid (3 quarts)
  • Transmission tunnel modification components
  • 31-spline slip yoke in 1310, 1330, or 1350 U-joint configurations
Subtotal 0.00 0 selected
Final step

Review your build

Make sure everything looks right. Click Edit on any row to change a choice.

Package total 0.00