Well, you could be in a situation where your are pointed up hill, getting over top a 3 foot ledge and all the weight is on the rear. While trying to get the front up, the weight shifts to the rear end and changes the axle position. Mix that up with a large rock or two and you are twisted at the same time, not to mention a little go pedal to get up. Or you could be doing a steep down hill with all the weight is transfered to the front and the rear lifts some, although this would not put as much stress on the rear as would going up hill. Or even, you could be going over some repeating hills at a swift pase (whoop de doos ?), and your suspension would be compressing and releasing at the same time on both sides of the axle (just read your other reply and you mention this already). I understand you point and it is valid, but the axle still can move up and down. And if you can keep your rear arms closer to the same length, there will be less pinion change, than if the upper is stock length and lower long armed. Both styles may work perfectly fine, I just prefer one to the other. And I do most my wheeling at Tellico, although I am looking to go more new places these days, most recently Moab which is kick a$$. :thumbsup: