If it is a mechanical issue then look at your flywheel teeth carefully. If it is electrical then you are either getting poor quality starters, or the exhaust is running too hot and making the starter go bad. It is also possible that the starter is not the fault, but a wiring failure going to the starter.
A 93 GM truck? Yes. Replace the starter every four years as part of regular maintenance.
every couple of months
You will need to replace this filter every 4 months.
every couple of months
not nessicarily. every couple of months they get into heat. i beieve every 4 months
That could be a worn out starter motor. I used to have to replace the starter in my van, an '82 with a 460 engine, every couple of years. It had the same trouble yours is having. Since I put in a more expensive starter (from JEGS.com) 6 or so years ago I haven't had any problems with it even when very hot.
If you shut it off properally then every 6 months to 8 months.
Every 2 months
Yes, but they are mostly small tremors. Major earthquakes happen every couple of months i guess.
every 6 months
Yes, it is recommended that you do so every 3-4 months
for any age just have your hair trimmed every couple of months