Identifying BC cvh gearboxes

[JR]

Anyone got info on how to decode the alloy identification tag on Ford BC cvh gearboxes? - my web searching  has not found anything definitive to date - trying to find vehicle applications to determine gear ratios/final drive ratio etc.

I have a 5 spd BC with tag:-

91WT MB

F0B0 K30

John

[Jim Hearne]

I've never found anybody who can decode the Tag, not even my tame Ford dealer.

91 means the year it was first used so it's from a Mk3 Fiesta or Mk4 or 5 Escort.

You can measure the gear ratios and final drive by turning the input shaft and counting the output shaft revolutions.
Some work with a spreadsheet should let you match the ratios.

If you take some pictures of it i can tell you more about what car it came from.
It might be a B5 gearbox rather than a BC

Jim

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[Dave English]

Hi John.

This doesn't help much with your tag, but this website does give some ratio information based on vehicle model and year.

www.projectbobcat.com/guides/ford-gearbox-ratios

Hope this helps

Dave English

Q2-009

[JR]

It's strange there is no decode info anywhere - it was clearly put there for a reason & means something ;-) - I may try Ford as well to see if I can get any info.

I will take some photos and post them up - it's still in the saloon at present so may not be very clear.

The bellhousing looks to be earlier than 91 - casting code is 87 TT 7F 096 AB XVI/1.

The car (factory built saloon Q080 2 litre cvh) seems to have quite a few parts from multiple donors. Currently trying to identify stuff before refurbing or deciding on engine/box swap.

John

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[JR]

Hi Dave

Thanks - already explored that site - pretty much been all over the web sites/forums for Fiesta, XR2 XR3, Escort, Zetec..... etc. A Jim said you can work out the ratios by spiining the engine/wheels - car will be on the ramps this week so may just have to do this. Still surprised that there is no reference source for a common Ford box.

John

[JR]

Hi Jim

Few pictures of gearbox from different angles - still in car so poor sorry. 

John