Can anyone please point me in the right direction to being able to convert my a type diff to use b type driveshafts

Not sure what type a and b are ?

Do you mean the push-in and bolt-on types ? (aka tripode and lobro)


If you want to covert from push-in ones to bolt-on ones then you just need a pair of stubs to go in the diff (and to take the back cover off to fit the circlips that hold them in place)
And you'll need the bolt-on style hubs for the other end too