mark
+1y
it wouldnt really pull, it's an axle so it doesnt move.
if you drive it as it sits, the rear end will be cocked to the left, and you'll notice your steering wheel will be to the left more than usual. a lot more.
just look underneath and see if the axle is still centered on the locating pin on the leaf spring. if you dropped it yourself you should know what this is. and if you have blocks out back, check if the axle is sitting on top of the blocks. that's just mostlikely what it is. your Ubolts probably caught the manhole and yanked that side and just ripped that little pin.