i'll try to get in on the square tube, but all i did was use the u-bolt that addco supplied had the tube drilled and attached it to the frame. same on the bottom of the tube, 2 holes for the bar bracket used grade 8 bolts and attached. used energy suspension 8" end links. the tube is 3" square. easier to get a wrench in.
new shot for derek
the bracket is 5" long 1/4" thick, i used 8 " links to keep sway bar level with ground. these are only 1" more than addco gave us. so far took 25mph corner at 50mph, no tire squeal handles great.......
Tomorrow is my trial day. Bushings plus sway bar. I'll spend most of the day on it, as I'm going to experiment with the hook-up of the bar. I'll be sure to get pics and let you know the outcome