I moved the frame into the shop after work today to get started on raising the crossmember 1.5". First order of business was to do some housekeeping.
With the critters exiled, I layed out a rough cut line. I don't like that I'm going to lose the upper two mounting points above the upper control arm studs. Gotta find a way around that. This is with the frame flipped upside down, they're the bottom two holes. They'll be right at the upper frame flange, and there's no way to relocate the hole in the crossmember any lower. I do want to drop the upper control arm studs .5" for a better camber curve, so that may drop the holes back down into the side of the frame rails. I might be able to squeeze a couple smaller diameter bolts in there then, but it would be super close.
I'm also thinking about dropping the lower rail (upper in pic) 1.5", then cutting out the whole center of the frame rail and filling it with flat plate so I can make clean mounting holes. There's no way to cut 1.5" out without butchering the holes like I have layed out here. I'd rather just section the crossmember itself, but then the R&P mount wouldn't fit.
