Drive shaft covers

[gaz05]

Been to Ford dealer this morning to order a couple of the steel covers needed to refurbish my drive shafts. The lad behind the counter couldn't find them on his parts fisch. Anybody know the part number and if they are still available?

I think there are two different sizes and my shafts are from a diesel.

Surely there must be a market for these given the number of sierra driveshafts around?