I have a 4 speed gearbox with Laycock overdrive and would like to identify the type of car it came out of, in case I need parts.

Is there a database of serial numbers for Jag gearboxes?

The serial number is JZN1103 and there looks like a date on the main right side casing of 13 10 66

Any pointers greatly appreciated.

Paul

 

I think it will be the 4-speed box introduced in the early 60s, and used on all Jaguars with a manual gearbox, although I'm not sure if the E-type had an overdrive option. Its a good box. The overdrive was made by Laycock de Normanville in Sheffield, and parts are still available, but the gearbox is more difficult for spares other than bearings, of course.

Sheffield Yorkshire providers of overdrive units

 

I found a link to SALOON Data - Keeping track of every Jaguar Saloon - Jaguar, Daimler classic saloon (sedan) information, articles, photos and register which has all sorts of info on early jags and is searchable by serial number. A search indicates it must be from a Mark X/420G.

Paul