In good used condition, It is reversible, and one side is fine and the other has some lite pitting. I do not know the exact years and models it was from, It does measure 2 15/16 inches across at its widest point. and the part that mounts into the base is a rectangle and measures 3/4 of an inch long. Please carefully compare the photos and be sure it is correct for your year and model. It comes exactly as shown in the photos as I do not have the base or any mounting hardware. 

PLEASE READ First Before Making The Purchase. Smart Phone users, Please view this item on a PC before making your purchase. Items may have slight imperfections that can not be viewed on a smart phone. I will only ship to The UNITED STATES Only! All others are recommended to use eBays INTERNATIONAL shipping.  ALL SALES ARE FINAL, Item is sold "as is", no warranty, No Refund. It is buyer's responsibility to verify compatibility of what they are purchasing. PLEASE be sure you are bidding on the correct item that you need. Please CHECK PART NUMBERS, Also email me with any questions you may have.