TREMEC TKX 5-Speed Conversion Package | Ford Small Block

TREMEC TKX 5-Speed Conversion Package | Ford Small Block

TREMEC TKX 5-Speed Conversion Package | Ford Small Block

Description

Key Features

  • 600 lb-ft torque capacity with 7,500 RPM shift capability and 8,000 RPM engine speed rating
  • Compact end-loaded case design provides superior tunnel clearance without floor modifications
  • 26-spline input shaft with 31-spline output shaft for maximum strength (10-spline input also available)
  • Wide ratio (3.27:1 first, 0.72 overdrive) or close ratio (2.87:1 first, 0.68/0.81 overdrive) gear sets
  • Multi-cone synchronizers with hybrid sintered bronze and carbon rings for smooth high-RPM shifts
  • Ribbed 3-piece aluminum housing delivers structural stiffness with reduced NVH
  • Three shifter locations standard - retains stock shift position for that factory look and feel
  • Bolts directly to Ford Top Loader four-speed bellhousings
  • 99 lbs dry weight with 2.7-quart fluid capacity
  • Built-in reverse light switch and cruise control safety switch
  • Fully customizable package - select every component for your specific application

Description

Building a proper five-speed conversion means sourcing a transmission, bellhousing, clutch components, hydraulics, shifter, flywheel, and a dozen other parts that all need to work together. Get one thing wrong and you're chasing fitment issues, pedal feel problems, or worse. This TREMEC TKX package eliminates that headache by letting you configure every component for your Ford small block application through a single guided selection process.

The TREMEC TKX is purpose-built for the aftermarket from the ground up - not adapted from an OEM design. The end-loaded architecture creates a slimmer profile than the TKO it replaces, fitting transmission tunnels that would otherwise require surgery. Special-grade steel gears and shafts (ASTM 4615) deliver the 600 lb-ft torque rating, while oversized gear widths and caged needle bearings in all positions ensure long-term durability under hard use. The hybrid synchronizer rings - sintered bronze and carbon - combined with a non-leading tooth profile eliminate the notchy, balky shifts that plagued earlier five-speeds, especially at high RPM.

The TKX uses the same bellhousing bolt pattern as Ford Top Loader four-speeds, making it a direct swap for your existing manual transmission. The side-mounted shifter positioning means no tunnel modifications are required, and the retained factory shift location delivers that stock look and feel your build deserves. Gaskets at all flanges simplify installation and eliminate fluid leaks - no more RTV guesswork.

Our package configurator walks you through transmission selection (gear ratios, input spline count), bellhousing options, flywheel choices (steel, SFI-approved, or aluminum), clutch components matched to your power output, hydraulic release systems, shifters, speedometer solutions, and all supporting hardware. Every component is vetted for Ford small block compatibility. Uncertain about any selection? Our concierge service provides expert guidance to ensure you get exactly what your project needs.

What's Included

Fully customizable package - select each component during configuration:

  • TREMEC TKX 5-speed transmission (multiple gear ratio and input spline options)
  • Ford-pattern bellhousing (aluminum options available)
  • Bellhousing block plate
  • Hardware kit (aluminum or steel options)
  • Bellhousing clutch fork
  • Flywheel (steel, SFI-approved steel, or billet aluminum - multiple balance options)
  • ARP flywheel bolts
  • Clutch kit (multiple torque capacity options for street to race applications)
  • Pressure plate bolts (standard or ARP)
  • Hydraulic master cylinder kit options
  • External hydraulic slave cylinder kit options
  • Shift knob/ball (multiple styles and finishes)
  • Shift lever options (stock position or offset)
  • Shift boot (leather or vinyl)
  • Speedometer cable options
  • Speedometer driven gear (16-21 tooth options for ratio matching)
  • Speedometer gear retaining clip
  • Electronic speedometer sensor option
  • Reverse light wiring harness
  • Transmission mount
  • TREMEC HP-MTF or ATF transmission fluid (3 quarts)
  • 31-spline slip yoke (1310, 1330, or 1350 series)
  • Lifetime technical support
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Final step

Review your build

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