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A transverse six speed sequential racing gearbox, primarily designed for use in FWD Touring Car and Rally Car applications, utilising higher torque engines. It is the spec. gearbox for the Argentinean TC2000 series.

The unit is a re-package of the successful ‘416’ FWD Touring Car gearbox, which has been utilised in the ETCC and WTCC. The new design gives a lower center of gravity, and the encapsulating cluster casting makes it easier to remove the cluster for ratio changes. Customers using the 426 have secured class wins in races such as the Nürburgring 24 Hours. A recent variant has been made available for RWD GT2 & GT4 applications.

Value engineered to meet strict cost constraints within this formula, this gearbox offers the highest quality at a cost effective price.


  • 650Nm (480lbf ft) maximum input torque capacity*
  • 6 speeds with sequential gearchange selection
  • Suits installations with gearbox on L.H. side of chassis
  • Differential is an Xtrac cassette type plate unit with a choice of ramp angles, plate and preload settings, (quick change diff cassette is easy to remove)
  • Bell crank actuated gearchange rack reduces wear and improves gearchange performance
  • Aluminum L169 castings, with ‘O’-Ring face sealing
  • Clutch shaft to suit customer installation is included
  • Xtrac ’Pin pawl’ ratchet and pawl gearchange assembly
  • Low gearchange barrel and Final Drive position
  • Left hand output flange is integral with the differential, to suit GI 82 or GI87 size tripode joint
  • Wet sump standard lubrication system (see options below)
  • Clutch release slave cylinder (AP CP3859-1250)
  • Gearbox weight is approximately 43.5kg (96lb)*

The Gearbox Offers The Following Benefits

  • Light, positive sequential gearchange
  • Easily removable cluster for ratio changes
  • Low centre of Gravity
  • Cost effective, reliable solution

Options Summary

  • Super polished gear ratios (Xtrem Process)
  • Single stage oil pump/filter lubrication system
  • Gearchange potentiometer, mounting and display
  • Quick release detent cable
  • In car gear lever assembly
  • Magnesium RZ5 casings
  • Cross shaft assembly

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