My ABS went out on my 99 Z71. This group educated me on it being a common issue. I thought I was going to have to replace the whole assembly for $700. Found this guy that rebuilds the electronic module on top of the unit for $110. Just got mine all back together and works excellent. Thought I would pass the word on. Email with any questions or for a contact email. This guy is very knowledgeable of the ABS electronics and saved me a lot of money.
Brian