Air Shocks 76 Dart Sport

This is what I am talking about. This says for Chevy/GMC truck but they should work.

http://www.summitracing.com/parts/rls-67-3809/overview/

Yep same ones I came up with.

And Excuse my Ignorance but, Top or Bottom?? And Why exactly do I need these again, I have FULL Clearance under the Dart for the Air Shocks, they don't interfere with anything and there is plenty of room around each of them. Wouldn't extensions put more Pressure on the original mounting locations as they are moving the original locations?? Still not sure why I need these. those dang things cost more than the set of Air shocks did LOL.