Removing it is very easy.
If I recall correctly, there are 4 bolts on the power steering pump, and another 4 on the engine block that you need to remove.
There is also a bracket that goes from the vacuum pump to the engine block.. like on the VP. If you don't have it lined up perfect when you tighten everything up, you will never get it right. From what I remember (this has been over 5 years since I did mine) you have to take the power steering pump off, then the bracket, then the vacuum pump. Going back on has to be in the exact same order. First the vacuum pump, then the bracket, then the power steering pump. If you put the pump on first, you can't get the bracket back on... So you have to take it back apart.
I'll go out and take a look at the truck tomorrow or the next day and see if it brings back any memory.