Seen this on Ebay:

http://cgi.ebay.co.uk/english-axle-diff-alloy-cased-lsd-3-7-autograss_W0QQitemZ280060671284QQihZ018QQcategoryZ21654QQssPageNameZWDVWQQrdZ1QQcmdZViewIt em

Anyone ever heard of an Alloy Casing Escort diff or has this been Specialy made.

Burtons (as well as others) sell them. About £400 quid new IIRC...

Used to come as standard on the early Lotus Cortinas and Elans I believe.

Lotus used to modify the Mexico casing like this for their use in Sevens but I don't remember the LSD as part of their standard setup. They did a 3.77:1 and a 4.12:1 ratio.

[Edited on 15/12/06 by Peteff]

As already said alloy castings were standard fittment very early Cortina Lotus and early Lotus Elan.
Dropped around 1965 cost grounds but continued to be homologated and supplied as an RS part. When the RS version became discontinued repro items came on to the market.

doesn't e-lite or muffet make that sort of thing?
think I saw it on donnington once I belivie 2005

grtz Thomas