With 4 inch springs, I regularly stuff the bottom spring cup into the
lower outer edge of frame. Not sure that riser would allow me full travel.
I built a 78 beater many years back with 4" lift on 36's.
I dropped frame end of track bar with a support that
ran to opposite side of frame, tying into stock bolts/plate that
hold upper shock mount (behind axle). Granted that rig
did not have a tie rod over.
I guess it is a trade off of flex vs tie rod clearance (assuming the flip
because without flipping tie rod clearance is a none issue with track bar).
It does seem to me that bumpsteer is just not that big of an
issue on the fullsizes vs the EB. I had street rigs from
stock susp/35's to 9" lift and 44 boggs. Every susp
combo I can think of and never really had bump steer issues.
My 70 EB with 3.5, 33's and perfect geometry still has bump steer,
79 XLT, 400/C6/mog 404's/42 IROKS, 8.5" lift.
79 XLT, 400/C6/D60-D44 8 lug, 2" lift, 35 BFG AT
74 Bronc build, 408/C6/Black Box/205/406 mogs/43 SX stickies