[bouncytruck]

They are fairly rare - there was around 80,000 First Generation Blazers (1969-1972) manufactured. If you factor in how many have met their demise in one way or another, there aren't many left.

As for the darty, could be a bad alignment, worn steering components or just oversized tires. Mine has stock wheels with skinny tires and it drives great. My last one had 35" tires with a huge lift and was a bear to drive.

If you are looking for a good tow vehicle, you should consider something with a longer wheelbase, like a suburban.