This video outlines the steps neccesary to repair a leaking hydroboost unit which is an extremely common problem on many General Motors vehicles. A rebuilt unit is 0+, and the seal that actually causes the leak is only .50 shipped on eBay. This is a repair that can be done by the average DIY consumer, it’s very easy. It took me about 2 hours, while also filming although I had a few hands to help. If you are experiencing a power steering leak that is coming from near the firewall, inbetween the hydroboost and the brake master cylinder, chances are this seal is the issue!
I purchased the seal for .50 on eBay. See link here. http://www.ebay.com/itm/131316579253?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
If you have any questions, please ask.