This is a great thread!!! I had asked about this in the "backyard mechanic" forum and was refered here. you guys have given a lot of VERY helpful info and i think im ordering my shackles tomorrow. one more question though.... anyone have a good idea as to how far the tbars can be cranked (safely that is)? i ask because i read in another thread about shackles AND AAL's with a tbar crank. figure it might give the X that kind of funky "forward" looking slope but didnt know how much of one. im just looking for some opinions on this. thanks again guys, it's al very helpful!!!