Yes.
Revolvers are very good at helping to keep your tires on the ground....and in my case, they allow me to have good articulation, while still having a strong enough leaf pack to support my 5,800 lb weight (And the X is heavy too...).
As they allow more flex than the 3" SL's do, and provide less lift than the standard lift shackles, there are some things that you'd need to do to take FULL advantage of them...but they still work amazingly well as is.
I've been running the Revolvers for a while now, and all of the BS I read about "unoading" and other crap was false...they don't do ANY of the things that people who didn't have them said they would.
They work just like regular shackles do, except they allow a few more inches of shackle swing because they can unfold when the axle is drooped..but, they still support the weight of the truck, just like regular shackles do at various angles of shackle swing, etc.
All in all, its one of my favorite mods.

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- TJ
2001 Xterra '03 VG33, SE 5 spd, 305/70/16's, Revolvers, UBSkidderz, Doubled AAL's, 3"SL/2"BL, winch/bumpers, skids, sliders, OBA, Snorkel, pine stripes....
Friends don't let friends drive stock.
http://www.gifsoup.com/view/501230/tj-tackling-crawlers-ridge-o.gif