I am having the same problem. Checked all fuses and replaced all bulbs. Then I replaced the brake light switch and still have no brake lights, except the one on top of the cab is working. The ones on the tail are not. Please help!
Boy do I feel dumb. I had the same problem. I took it to an autoparts store and they replaced the turn signal bulbs thinking they were the brake lights. Obviously the brake lights still didn't work. I then checked every fuse on the car and even changed the brake light switch. Then the shop finally realized the brake lights were on the top above the turn signals. I couldn't believe it.