Went to the GMC dealership today and studied the quadrasteer pickup a little more. Yeah the rearend is huge and the knuckles are too. I had one question though. Is there an actual u-joint in the axleshafts of that rearend, or is it a kind of CV joint? I was looking at it and it appeared to have either a dust boot over where the universal should be in the knuckle or it was a CV. Just wondering if anyone could verify.