I read you have to swap spindles and parking brake cable and everything will work. I looked on ebay to see if any where available and it looks like 05 and up Impala rear spindles are the same, and I came across a set with no brakes but had cables for about $120 which isnt too bad. I see ZZP sells a 12" rear brake upgrade kit, im curious as to what parts they use for rotors and calipers to do their kit incase I want to piece it together cheaper on my own. If I do this, I know I will figure out how to add an adjustable proportioning valve to fix my rear lock up
