Back when I had my ‘74, I took it in for some exhaust issue. On leaving service area for test run, the mekanick, drove out fast, hit a dip and the infamous extra u- joint locked up. Big hassle over responsibility but big problem was Ford was on strike in Europe and no parts were coming over. I waited weeks and when they got stock, I bought an extra and put it under the seat. Few years later, crossing the desert outside Phoenix Arizona u joint failed and I limped in to outskirts of city. Saturday morning and shop identified the problem and I was told they couldn’t get the part. They were totally shocked when I pulled out my spare. I was a young, really poor, military kid and would have had to sleep in my car if I had to wait for parts. Oh, the memories!