Its doable ive got 14" shocks on the rear of mine in the run up to
he front of the fender wells with some ford shock towers but i had to run wheel spaces to keep the tires out of the shock bodys
The plan is to chop the stock mounts and custom fab new ones flush with the bottom of the axle (or above). Then run a hoop right up under the bed fenderwell bulge. DSMS and Icon are telling me they can do a 15in travel at 23in compressed.
This should let me maximize travel from my shackle flip and stay outboard with the shocks, which I wanted for high speed stability purposes.
Measurements say I've got 31" of room to work with from mounting location to top of fenderwell, and 6.25in of uptravel at the bumpstop (Wheeler's Superbump) until fully compresses. Granted the shock is outboard of the bumpstop, but I'm still thinking 8" is enough of a cushion to keep from topping the shock out.
Extended length is 38in, and there's less danger on that end. Right now, with shocks off, I'm pulling a hair over 13in travel between the shock mounts. I haven't done the math as to what that turns into at the wheels, but it's enough to get the top of the rear tire level with the slider at droop. Something like 29.5in between shock eyelets. I don't see the custom mounts lengthening that by 8+ inches.