I just picked up a 1987 Buick Regal Limited. It has a 350 sbc swapped in place of the the 307. Anyways, I noticed that the brake lights are inop. The rest of the lights work, even the taillight part of the brake bulbs. I bought a brake switch just to test, but no luck w/ that. Is there any relay or fuse for the brake lights? I checked the fuse, its ok. where is the chassis ground located for the brake circuit? Any help would be great. I need to get this car road worthy!!