Automatic Transmission to Manual Conversion on a Classic Mini

The A series transverse automatic gearbox, like the manual, is pretty much unique in its design and operation. Foremost, it uses the engine oil rather than a separate Automatic Transmission Fluid (ATF) as its hydraulic power, it is therefore critical to perform regular oil changes and servicing. Vehicles will age and change hands; as a result, service history can be lost or simply ignored. The unfortunate outcome is the eventual failure of the transmission. To repair these units can be over £1,000, excluding labour costs to remove the existing engine so converting the car to manual transmission can become a viable option.

If you currently own an automatic transmission Mini, we can convert it to manual transmission. This service has a fixed price of £600 labour + parts (or £850.oo labour if the car is a Japanese import with factory fitted air conditioning).

We will need your car for a minimum of three days, we can offer a collection and delivery service at extra cost.

Rutland Minis can suggest various engine/gearbox combinations through our trusted suppliers, so you can choose a sedate 998cc unit through to hairy 90 BHP 1380cc

Rutland Minis can source the required parts; but if you want to source them, these are the items you will need:
  • Clutch Pedal – for fitting to the existing pedal box
  • Engine and manual gearbox assembly
  • Gear stick selector assembly + gaitor cover and gear stick knob
  • Subframe adaptor plates or replace the front subframe.
  • Clutch Master Cylinder – We recommend a new one
  • Service consumables – oil, filters, plugs etc
  • Clutch slave cylinder +flexible pipe – We recommend a new one

We offer an allowance on your old unit – this varies depending on type and condition.

Whilst carrying this conversion, out we would recommend fitting new engine mounts and looking closely at the suspension cones.

You cannot use the existing engine to mate to a manual gearbox. The oilways are completely different and the automatic front subframe is slightly wider -hence the adaptor plates or replacing the subframe. The park switch inhibitor  needs to be bypassed otherwise the car will not start!

The benefits of this conversion are two fold; firstly, automatic minis typically have very low mileages and are in fairly good original condition. Secondly, automatic cars are not so sought after, they will often be purchased much cheaper than their manual counterparts. So when looking on on-line auction sites do not discount these cheaper automatic cars that are always on offer!