So I did a bit of research and found this pic of a Sherman rear deck.

So, convinced that this must be the case on Oddballs tank, I bit the bullit and ground off the intakes. Made the hole a bit more oval with dremel and file. Made blanking plates from styrene and glued into place.
Needed a bolt effect, so cut and thinned them from kit pat B9, as this is not required with the fitting of Nick Aguilars transmission cover.
A bit of filler and paint....job done.

BFN
