I'm looking to buy an old (67-72) Ford F-100, or GMC seirra, and I'm wondering how reliable they were/are?

I'm looking to buy an old (67-72) Ford F-100, or GMC seirra, and I'm wondering how reliable they were/are?

They kinda werent. They where simple trucks beating on it with a wrench fixed most issues they had few parts that say failed. So they could be fixed easy if you know how to fix them an average kid now a days would be lost with these old trucks. They always needed tinkering but they would run through a brick wall and fire right back up.

New they were all pretty reliable. But 45/50 years later who knows. Lots of owners each and hundreds of mechanics per truck your guess as good as the next guy. Buy one today and you may make it across the street or across the USA… But all can be fixed

The fords where well made in their time. The 390 motor was a gas guzzler. I would love to be able to own and operate one.