I just had a look at 2 victa parts diagrams from the late 90s and the late 80s and have come up a blank
The late 80s one says the PT vac shares a crankshaft (hence output type) with a PT TAC edger. Looks like a straight drive not taper. Different than the regular motor
The 90s one says they all have the same crank an EN02118A – funnily enough this is the crank that both 80s and 90s manual says all the regular mustangs, commandos, etc have.
Maybe they standardised it in the early 90s, but whats confusing is both list the same part number for the fan impeller - hence same design.
Anyones guess until its torn down
By the way Norm, the newer manual says the super 600 uses a different flywheel – heavier maybe haha
