if you go into www.theclassiccougarnetwork.com i believe theres a section to where they show you where to mount the base to the door ,the size of the holes and what you`ll need. I have 2 pass side mirrors myself and plan to use 1 for my 70 vert when i redo her in about a year or so after the 2004 nationals.But i think you can get the base for the mirrors for the cougars thru some vendors. I`m not sure if the mavericks and the cougars were the same. Anyone know if they were?
I have heard that the Maverick base is the same as the one used on the 70 Torino and Cougar but I've never seen the Maverick one so I don't know for sure. The TCCN article has a photo of the repro base from Vic Yarberry so you can compare yours against that to see if it will fit.