No.
No.
It doesn't have one.
No.
Yes, the front has discs brakes on them.
An S10 is the same as a Chevy S10.
its on the passager side bottom left
The exact bore measurement is 101.6 mm.
Clockwise.
Yes. Chris Alston, at Alston Chassis Works, makes a kit, with everything you need.
If you are looking for a fuel cut off switch on that 86 S10, it doesn't have one. That's a Ford thing.
If it is a standard transmission S10 maybe they are talking about the "throwout bearing" which is part of the clutch operation that can go bad.