I got a new set of seat covers today and plan on spending the weekend replacing the old ones. Having some trouble figuring out how to remove the seatback from the base, anybody know how? I tried a couple of things but took a break for a bit, had the seats on a shelf over my work bench in the garage and just about killed myself getting the front bench down the ladder myself (safety first lol) so I figured it was time for a beer. Any help would be appreciated.