[169yenko]

Not exactly sure if yours will need a sender or not. I looked at the sellers it does not look like some I've seen that require a sender. Those usually have screw terminals on the back for wiring up the sender. Stewart Warner has reissued the Greenline gauges and the new tach does not require a sender. You may can check their site out for some instructions. On these tachs and gauges...I see some sellers on Ebay who claim they have NOS sets of these when they are playing with the words and the gauges are actually brand new sets that anyone can get from Summit Racing. Sorry for the rant off the post.