My turbo 400 was leaking fluid at the shifter and the speedometer cable port. No problem I thought. I'll just stop by the local parts store and pick up some new seals. Not so fast buddy. Found a shifter seal at NAPA but needed a removal tool (Evercraft7769250) Four different major parts stores later found the last one any parts man could find two delivery days away. Ordered it. At each stop I also ask for a seal kit and a new 38 tooth speedo gear. No one could find either in their computer listings. Stopped by a big GM dealer and was told GM had discontinued that gear and seal kit. So, Amazon to the rescue. But, I am finding it harder and harder to locate stuff I used to find easily. Which means another consideration in the ever growing list of things that go into deciding what parts to use in a build.