Review on ACDelco 88935864 Original Equipment Modulator by Chad Boho

This is the stock brake valve for my 2001 GMC 2500hp pickup. The dealer quoted me as $750 for the same part, but the price paid here was almost half the dealer's price for the exact same part. The item arrived in the original AC Delco packaging with plenty of padding to protect the item. Installation took over 4 hours and I will not attempt this job unless you have a car lift.