sorry...
1028...sorry i didn't respond to your PM.havn't logged on in a while.
In answer,no i havn't installed a dual stabalizer.just chucked the worn out stocker,and installed a single heavy duty one.from rancho.I had a look on the skyjacker web site and the dual kit is,i think,meant for a parralell mount (one over the other).at least thats what the footnote said(couldn't find a drawing).there is physically no way a dual inline mount will fit,unless the second shock mounts with the body end away from the pumpkin.
As for DW problems (as per your pm)...i am happy to report iv'e had no such trouble.The only issue i have is terrible steering geometry,and some adverse yaw under heavy braking,which i believe is caused by front end dive,leading to an effect similar to bumpsteer.DW can be difficult to resolve.iv'e even experienced it on a new 2006 f-350 truck that our company rented.The key thing here is to realize that the stabalizer is really a bandaid for the real problem.you could throw a dozen stabalizers at it and still not resolve the issue.
it could be anything from worn kingpins to an issue with caster,worn shocks,loose tie rod ends,cracked frame around the steering box...you name it.hopefully the duals will calm things down enough to make it tolerable.if not,your going to have to check EVERYTHING.you may be stuck experimenting...DW sucks.good luck.