Yes to both your questions. Here is a link to the install instructions.
http://www.dakotadigital.com/pdf/VHX-73c-pu.PDF
Just received a VHX for my ‘74 on Thursday, but not ready to install it. It looks straight forward and simple. Manuals seem well organized and the quality is good. I’m not using the stock gear selector so I also ordered their GSS-2000 gear selector for $96.