Caterham or Westfield cars performance can be completley transformed By fitting  a close ratio Ford Type 9 Gearbox.The main benifits are a longer more useable 1st gear ratio. This allows the car to stay within the power band of the engine utilising all of the torque. We offer several ratio sets in either helical of Semi helical kits depending on your intended use.

For cars fitted with the Ford sigma engines we can offer a custom made one piece input shaft a common week point as original factory supplied boxes had a welded hybrid input shaft which often fractures ! causing loss of drive.

This option is available on  both our Semi Helical boxes and FM275 sports touring Boxes  This allows you to upgrade your ratios without the hassle of changing clutch set up !

Transmissions and drive trains are often overlooked when improving performance, the truth is without the right gear ratios  you will not gain the true performance of any engine tuning !

Alloy maincase upgrades are available along with a full range of, heavy duty full roller bearing mainshafts, alloy top lids with extended breather pipe, Heavy Duty 3rd/4th gear inner hubs, Heavy duty gear lever saddles the list goes on  !

If you would like to know more please get in touch we can supply gear calculations for each ratio set to compare the improvments in performance.