The F16 gearbox is a 5-speed manual transmission that was used in the Vauxhall Cavalier and Opel Ascona from 1981 to 1988. It is also known as the Isuzu 5-speed manual transmission, as it was used in some Isuzu vehicles as well.
The F16 gearbox can be fitted to the Vauxhall Nova GSi with some modifications. The first modification that needs to be made is to the gearbox tunnel. The gearbox tunnel of the Nova GSi is too narrow for the F16 gearbox, so it needs to be widened. This can be done by cutting the gearbox tunnel and welding in a wider piece of metal.
The second modification that needs to be made is to the propshaft. The propshaft of the Nova GSi is too short for the F16 gearbox, so it needs to be lengthened. This can be done by having a new propshaft made or by welding an extension piece onto the existing propshaft.
Finally, the F16 gearbox needs to be mated to the Nova GSi's engine. This can be done by using a custom-made adapter plate or by modifying the existing bell housing.
Once these modifications have been made, the F16 gearbox can be installed in the Nova GSi and used without any problems. The F16 gearbox is a stronger and more durable transmission than the original gearbox in the Nova GSi, so it will provide better performance and reliability.
