I have to admit, you've got me curious about the dog bone for the torque arm mount. I was starting to wonder how you could have the rear axle solidly mounted and then have 3 pivot points on different planes without binding, but this is an ingenious idea! But I wonder how much you gain with a torque arm running with truck arms? Are you predicting enough flex in the rear end housing that the truck arms aren't enough to maintain a correct pinion angle? All cool things, just thought I'd spark some more conversation...
http://i981.photobucket.com/albums/a...pse1079adb.jpg