Whats up everyone, bout to pull the trigger on RC's 3" level/lift kit for my 2009 sierra 3500hd 4x4. Description of the kit states it will not work with dual rear wheels, so I give RC a call to see what can I do to make this kit work on a dually, the guy stated the only thing different that will not work in the kit is the rear u-bolts. The kit comes with 1.5" blocks for the rear. So my question is would anyone happen to have specs for the rear u-bolts that I can pass along to a spring shop to have made, or would it be easier to just buy a stock dually u-bolt and tell them to add 1.5" length to them? Other options? Thanks guys!!