yeah definately is a stanza 5 speed, on the side of the bellhousing is 60, but besides that, the guy i bought the engine off posted this up :
http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=50870the gears work like this :
R 2 4
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1 3 5 so an auto 120y tailshaft would fit nicely? i guess ill go measure it and go find one at the wreckers