I was just wondering if a Nissan Bluebird S111 Manual Gearbox would fit into a 77 120y sedan and would i have to do any modifications to install it?
Thanks

Bell housing to engine bolt pattern is completely different to that of the A series.
Don't know if they can be swapped but the tiny A series bell housing would not permit a decent size clutch to be used.
Transmission tunnel would be way too small to accommodate the 5 speed.

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Regards, Graeme
Just trying to help...
http://nissanman.shutterfly.com/
graemes@internode.on.net

For a decent gearbox upgrade, youd need a crossmember from a 180b, a L20 b engine, and a five speed box.
Stanza suspension conversion too

Or keep watch on ebay, the odd five speed turns up, one there now?
It is still an A series, and close ratio sets are NLA
But plenty close ratio sets avail for the L series engine boxes

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Yep, i race a Datsun, and I drive a truck, sometimes I get confused, and then the truck goes fast, and the Datsun gets a lot of boxes shoved into it. AWW GEE