Gearbox Identification

Yet another identification post I'm afraid, this time the gearbox.

I have found various numbers on the various casings as follows:

25381680 E
HDA 3 539788
528237 B
VAF LM22W
HWV Gr8

Pleas see picture attached to this post to see where I found each of the numbers.

I'm thinking of removing the box and rebuilding it (nice winter project) so any tips would also be very much appreciated.

Cheers. Olly

The one with the suffix E is your gearbox number , other numbers probably casting numbers used by the manufacturer of the casings.

as above ,e means its a late 2a box with synchro on 1st and 2nd