If you buy Corbeau harnesses, good instructions come with them. They should mount to the stock location for the back seat belts. Look on their site for more info. If nothing is on there, I would email them.
__________________
Quote:
Originally Posted by scheides
I swing from the nuts of cold hard data. Anything less is a guess.
To do it correctly you should mount the belt to the rear seatbelt mounts like this. These images are from Takata's instructions on their website, but this applies to any and all racing harnesses.