Here's a photo of the back of a Tach. Mine is identical except it's the push in type and doesn't have the securing studs. I can only think one of the three tabs is for the ground as there doesn't appear to be anywhere else to attach it.
For some reason I can't upload it so here's a link instead.
Msc :: Tachrearview.jpg picture by adampettitt - Photobucket
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71 Bahia Red 2.2E (sold)
72 Silver 2.4 T (stock except for a 2.8 big bore kit)
69 Chartreuse 2.0E
Last edited by adam911; 04-18-2010 at 11:52 AM..
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