Gearbox product codes

This thread is for discussing technical topics.

Moderators: Ian Grace, Will Grace

Ian Grace
Site Admin
Posts: 5035
Joined: Sun Nov 19, 2006 12:55 am
Location: USA

Re: Gearbox product codes

Post by Ian Grace »

The plot thickens. It looks like these sanction numbers should more accurately be referred to as model codes.

Here are three pictures of my McEvoy, showing the component serial numbers and codes. All three components share the same 74 model code. 74 is therefore the model code for the SV Minor - or at least the 1933 models with 4-speed non-synchromesh gearboxes.

I'd be very interested to receive these numbers from other owners' cars, so that we can build a better picture of the meaning of these serial numbers and model codes. The product code for the 1934 season MInors with synchromesh gearboxes is believed to be 110.

Gearbox:

Image

Front axle:

Image

Rear axle:

Image
Post Reply