Oye vey...

You can sit and theorize all day about what revolvers will or won't do, and at the end of it all, it won't matter if you can't get the front axle through the obstacle, anyways.

[sidebar: TJ, that xterra on the side-slope in your photo isn't even close to the tipping angle for the rig; hence the reason you didn't see any difference w/ the revolvers.)

The scenario is having a rig in such an extreme angle it lifts a rear tire.

The answer to lifting 1 rear tire is NOT to increase droop travel at that tire (aka, adding revolver shackles).

The ANSWER is to increase droop travel at the OPPOSITE DIAGONAL tire, so the truck frame & body never tips to that degree in the first place.

Until then, anything you do is just going to ben an unsuccessful attempt at throwing money towards a problem you can't fix easily (or cheaply) with an IFS rig. Save your money for something that will help in this situation (like a locker), and leave the revolver shackles to the mall-crawlers.