The 88-98 Chevy bench seat is the same width as the stock seat and has flat brackets as well. A little elongation of the bolt holes, and your in business. Why do you need disc brakes? Have you repair/corrected/adjusted the stock brakes? Have you put in better shoes, bled the system, What's wrtong with them? I honestly think we read too many magazines and get caught up in the hype. I really do. Once you start down the "rework" path, you won't be able to stop because this part means you have to change "that", and you can't the use stock "this" and so on and so on. Run the truck. Enjoy it. Just make it safe and have fun with it.
