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R240NA »
https://forums.nicoclub.com/r240na-u1367.html
Sat Nov 02, 2002 8:25 pm
That is a JDM S13 diff. The 5 bolt axles were common in Japan for many years, and there is no bushing in the front mount, S14s, J30s, and Z32s all share the same larger mounting hole with a bushing. While I can't help with a full diagram, the FSM has a nice blowup of parts and items found inside the diff case. Try there.