That means "if it's a manual it has to be 4 speed floor shift and not 3 speed" . It's just written in a confusing way [MENTION=2]Blocker[/MENTION].
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Again, that bit just needs some proof reading and editing. The derated Gvm was introduced mid 75 , meaning that for later cars you can use the lower GVM to prove a Sandman. Earlier ones can't be determined from tags alone unless it's Brisbane built and stamped XX7.
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