I hope you haven't already drilled the pins in yet on the traction bars, that is the very last step you do when putting them on. Fixing the bar in place already with the truck set like that will but tension on the bar and will put the axle in a bind along with naking the pinion go up.
If you have already drilled them, you can take the pin out and then rotate the inner bar 90* and redrill the hole. This is to be done after everything is put together and the truck is sitting under its own weight.
Yeah i know. The bars were on from when I installed them with no overload rear spring and no block with 5.4 coils. I have to redrill it.