4x4 swap

[Mister laugh]

I have been searching through the forums for info on a 4x4 swap, all of the threads i have come across more or less tell me to search except for a few that are very vague. What i want to know is can i swap the whole front x member from a 73 to 87? and then hang springs? I have a very very rusty 82 k-10 that i may use for parts to convert my 70 c10 with a high hump cab and straight six. Maybe even swap in the diesel at the same time although this would be less straight forward.