looking for 71-73 mustache bar
 

need mustache bar for 73 z, r200 rear end (behind a BW-5 speed coupled to a L28 turbo)


if anyone has one for sale please let me know.

You need an "R200 Mustache bar."

IIRC all '71 to '73 S30s had R180 diffs, and that Mustache bar is different.

Later S30s, IIRC '75 and later, could come with an R200, and that mustache bar bolts into the earlier models.