Thanks for the heads-up.. but.. not for nothing but the LAST place I buy important parts for any of my cars is fleabay!!

And your story is exactly why! Sorry your having a headache with your purchase and don't mean to infer anything bad on you but yours is a common story and another reason that venue has a bad reputation. There are a lot of good people also but, the reputation is not a good one.

Since you still have the 8" booster ( I think ) did you verify the measurement of the rod pressing into the master cylinder? It may be to long and causing the booster to slightly apply pressure. It's been known to happen!