Here's my 2002 Blazer Extreme that I bought a few weeks ago. It's got the 4.3 and Auto trans. It drives straight and smooth at highway speeds.
The previous owner messed up the dash bezel and nearly every panel; installing a CD player and speakers.
Gas mileage is 12-15mpg; which I don't think is that great. I haven't been lead-footing it either.
The white/gray Extended cab; in the above post; developed a knock in the engine. I'm seriouslly thinking about the V8 swap.