Recommended 5/7 Static Lowering Kit for 72 GMC with rear leafs
 

Looking all through old board posts and just keeps coming up with the now rebranded ECE kit that no longer exist.

Re: Recommended 5/7 Static Lowering Kit for 72 GMC with rear leafs
 

A 5/7 drop would be spindles & springs up front + a flip kit out back.

Rear flip info:
http://67-72chevytrucks.com/vboard/s...d.php?t=577529

The difference to be aware of is the early GMC leafs are 2.25" vs later 2.5" width so standard flip kits are of the 2.5" width variety.

There was a rumor that Holley bought the ECE line of products but I'm not sure how valid the info is. Holley has been gobbling up A LOT of companies though so you might see if they're offer suspension stuff for your model.

Re: Recommended 5/7 Static Lowering Kit for 72 GMC with rear leafs
 

I think I ended up grabbing a flip kit for a square body for mine since it really doesnt matter. The issue youll have is for the drop shackle kit. That I think I just found on ebay when I did mine. Havent had any issues with my setup.

Re: Recommended 5/7 Static Lowering Kit for 72 GMC with rear leafs
 

This is my feeling as well. If doing a flip kit, any flip kit set-up should work fine. When dealing w/lowered leaf packs or shackle/hanger pieces, that's where issues arise because of the 2 different spring widths.