Transit Mk 3 Engine Mount Rubbers. /. Insulators

[vana mana]

Ok
I need an expert as I'm getting no where fast in this

So let's talk about engine mounts and different part numbers regarding engines in the Transit mk3

I have code numbers but anyone who knows more please help out and join in

So
At the end if the VB number not Finis number there are letters

AA

BB

AB

I've been told AA is for petrol engines ( would this be Pinto or V6 or both.?

I've been told BB is for Diesel ( presumably 2.5.)

I've been told AB could be for Petrol V6

Can anyone 100% confirm this or correct this and why?

There's lots of confusion as I've found evidence that AA is also listed as 2.5 Deisel

I'm so lost?

Thanks in advance