What should I use to get my rear to lay out ?

[72MARIO]

I have a 72 Leaf shorty. Now that My girlfriend has called it quits on me I guess I will do a little more on the truck before moving out and getting my own house.

I would like to be able to drop the rear untill the axel hits the frame possibly notch it. I need a setup that's a fairly easy install the leaf setup hops really bad. Axel flip and air or Looking towards a 4 link ? not sure. Mabye some of the 73 up guys can help out here with what you have used.

Thanks for the help.