Hi Chris, Sorry...I thought you were considering lowering your truck but now I see you already did that. Couldn't you just use the lower plate (under your leaf springs) to continue connecting your shocks? I finally found an image of what I did. This is an image taken while lying on my back. It shows the stock lower plate along with the shock mount (which in my case bolted to the plate separately). Hope this helps.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end