It depends what year they are and if they are 2 wheel drive or 4 wheel drive.
Bearings are dirt cheap-never install a used one.
Always replace inner and outer wheel bearings on the same wheel at the same. You don't necessarily have to replace the bearings in both wheels at the same time, though it's not a bad idea, but always inner and outer on the same wheel at the same time.
In most cases, yes.
No, the hub is the outer housing that the bearing sits in. Usually bearings have to be pressed in and out of the hub.
yes
The same as they are on any car - bearings that have begun to develop play or roughness.
Yes you can, It's the same thing. As long as there both 2-wheel drives are 4-wheel drives.
Yes. Very easily. They are built on the same body, but the blazer is the suv and the s10 is the truck.
you don't, there not the same.
The answer depends on3 factors. Automatic or manual, 4 cylinder or 6 cylinder, and 2 or 4 wheel drive. If both are 6 cylinder and automatic and two wheel drive, then the answer is yes. The blazer was only available with a 6 cylinder motor. The truck could be equipped with either.
Not sure if it is the same for your year, but most FWD cars have one piece Hub bearings for the front wheel.
could be many reasons, my truck does the same thing sometimes, things that you could check are: engine belts and pulleys wheel bearings/ball joints engine/transmition mounts