The 80 series rear shocks are longer and will give you immediate results for more downtravel.
I added the AHC spacers in the rear which accomplish the same thing as doing a “shock mount chop” where you take out about 2” of your shock mounts, then re-weld them back in place. The AHC spacer is the bolt-on version of that mod.
Relocating the shock mount (pushing the ram up in its stroke at ride height) means you’ll need to run bumpstop spacers of the same length so you don’t destroy your shocks. The distance you’ve relocated the shock mount becomes the distance of additional downtravel you’ll have- so with these AHC spacers I saw about 2” of additional downtravel plus the additional downtravel of the 80 series shocks