Pretty good trio to own.

Short, ...readers digest condensed version...

First one is correct for 70-71 E/B Hemi with axle pkge and TA/AAR, perhaps some 69 Hemi.. all with federal pump...
Middle one is correct for 70-71 440 and 440-6 saginaw with axle pkge
third one may be for later 340 A-body, not 100% sure.

I'm sure wiser ones will chime in with complete story.