I don't remember. It was a good bit, though. I'm unsure 3/4" would do it. Keep us posted though. I don't think I'd swap my 4 blade out anyway. It never over heats and it's very little draw on the engine.
I won’t be heart broken if it doesn’t fit. I just love using the Mopar Performance stuff whenever possible.
I’ll definitely make a post about it if it all works out. Im using a slimmer core than stock and I’ve had it relocated back in the bracket for the max clearance possible.