I know I'm a 2nd Gen but my brake light came on at 1st even with everything good then after short drive the computer figured everything sort of out. Still have abs light on but yeah....
I didn't swap out the rear axle. I also swapped the master cylinder for one out of a Dodge Ram 98. Brakes are bled and fluid is at the right level. Just the light stays on like I have the parking break on still but I don't.