I have both of those same spoilers on my 69....they actually DO help for better handling at higher speeds , you`ll notice if you go 85 or above that steering gets better because of more connection to the road... yes , the hardware kit helps install fron spoiler , some do it w/o the kit and just use the bolts there, I prefer to use the rods, I`ve hit a few speed bumps w them and no problem , I`ve heard one that did not have the hardware and he cracked it some hitting bumps , later at high speed it just disintegrated and blew off...
if you want to you can mount the rear letters onto the rear spoiler too, just make a template from the trunk , and drill holes...spoiler is 'hollow' so you can get to the back side , just make sure all holes will miss the'braces' on the back before you drill....dont ask how I know! lol I didnt move the letters , only a 400 emblem...so not 100% that they will line up to miss the braces...
