1968 k20 Suburban PTO

[Mikestone]

I just picked up a 68 k20 and I'm looking for some insight on the PTO application. I was told by the previous owner that it used to have a PTO drive. I believe this to be true because there is still a PTO lever inside the cab that has linkage hanging right next to the transmission. With that said, not only do I not have (but do want) the PTO unit, I also don't know why this suburban would have had it. If anyone knows where I can find a PTO unit that will mount to the transmission (CH465) that would be a great start. As well as applications and a diagram as to how it would be hooked up. I know it would likely be for a winch but I'm curious to know if it has other uses. Any pictures of member's current PTO setups are greatly appreciated!!