sadexcuse4s10
+1y
I wouldn't attempt building a full frame at all man. It's a hell of alot more work and planning than you're thinking. You have to take into account engine placement, control arm mounts, center link mounts, cab mounts, tranny x-member, frame width, engine cradle, bag mounts, 4 link has the correct triangulation to prevent axle walk, gas tank placement, and every single thing must be checked for square at least 3 times before being welded fully. Then you get to modify your floor of your cab, tub the firewall, make sure your wheelbase is correct
it's harder than you think. I've bagged 3 trucks and bodydropped one, and I wouldn't attempt a full frame yet. I would though, use a stock front clip and build a frame from there back, much simpler, and it can look really good when you tie everything together with steel gussets. You also have to make sure your frame can take the torsional stress of a 3500 lb. vehicle puts on it when you're hanging a curve. A full custom frame must be strong as hell, period.
Your best bet is a traditional bodydrop though, it accomplishes the same thing, it takes less time, and is alot easier for somebody that seems like they need to learn quite a bit.