You may have had more options back then than we did.
The only choices we were aware of at the time were the K-22's, the KS-22's, and welded spools. We didn't like welded spools.
It was our experience that if you didn't slap the accelerator, didn't back up in a sharp turn while under load, and were careful about appropriately matching rpm while landing from a jump after all four wheels were off the ground, then axle breakage wasn't a problem. In other words, don't go break something just because you have enough torque available to break it at will.
It is of course, possible that using them for half a century just proves that either I'm a terribly slow learner, or maybe that I chose not to let the big block Chevy overload the truck.

Are the 22's still available?