Yes, you read correctly, TWO bolt mounting...
The guy from whom I purchased my truck had already done several modifications, 12 volt conversion, Chevy SB engine swap, and power steering. I knew the truck needed some work that he had not yet started, e.g., brake system. So I totally replaced the brake system, (new hard lines, flex lines, dual master cylinder, wheel cylinders), new tires, tubes, flaps, carb rebuild, battery, and got the truck running.
My potentially fatal mistake....assuming that someone capable of swapping the engine, power steering, 12V conversion, etc., was actually intelligent enough to do it properly. Call me a fool, but I did not double-check his work.
I had been taking the truck on short drives only, to get a feel for any other items that might need work. My cousin had come to visit, so of course I had to take him for a drive in the truck! In the first hard curve in the road, we heard a loud "pop" and the steering wheel moved about 1/2 revolution with no response. Fortunately I was only going about 15 mph as it was a very sharp curve and there was no traffic. I kept it on the road and managed to limp back home as I was only about 1/4 mile from the house. I was left with about 1/2 revolution of play in the steering wheel before the tires would move.
When I pulled into the yard, I found that one of the steering gearbox mounting bolts had broken, the other was stretched and almost broken, the third bolt had NEVER BEEN INSTALLED! As I turned the steering wheel, the gearbox would flop around the one remaining, stretched, almost broken bolt. One of the bolts was marked as a grade 5 and the other was unmarked.
I am posting this as a caution for anyone who may have recently purchased one of these trucks. Many of these trucks have been modified and most have certainly been worked on at one time. Unless you know the person who did the work AND know the quality of their work, please be more diligent than I was and check your truck carefully to see that it is roadworthy before taking it out.