I picked up a brake pedal for a manual brake car. Noticeably different. The ratio is closer to 6-1 versus 3-1 for the power brake pedal. There are two pivot holes in the hanger for the pedal, but we had to drop the steering column and remove the hanger to get the pedal out. The brake pushrod mounts higher than on the power brake pedal; luckily the firewall had holes and a cutout for a higher mount. But, I had to remake the brake lines to the proportioning valve and line lock. I put the 1-1/32" master cylinder back in and brake effort is noticeably better. Not nearly as good as a power brake car, but much better. I'm sure the 15/16 master cylinder would reduce effort further, but I like the lightweight master cylinder better.