The driveshafts are the same between them (obvisously I have no idea about the hardness though) except that I found that the flanges that are on the engine side of the u-joint are slightly different sizes. I found this out AFTER having the replacement engine in... grrrr...
This winter I should have that 82 engine back going again. I needed to fix an exhaust bolt that was broken off while it's out too. The rear hub has almost 26k on it and no issues with missing teeth so far. If I get enough ambition I might swap it over, but for now it stays because I have other stuff going on!
This winter my "must do" list is get the original engine back in it after fixing the exhaust bolt, spark plug threads and finally finishing the valve shim job, then rebuilding all of the brakes and fine tuning my carbs that I already cleaned and rebuilt.






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