67-72 and 73-88 interchange

[69SCSS]

I found a '74 that has a good 350 and trans really close to my work (down the street) and was going to look at it tomorrow. What I was wondering is what besides the engine and trans will interchange? Obviously not the interior, I'm talking more chassis. Since my truck is still missing parts I'd like to use as much as possible off the truck. I know the front suspension is similar, will the shocks interchange?

I did a search and didn't find any info, so if I missed a thread about it feel free to call me blind!

Thanks!