I have a question the back of the car is level I measured from the torsion bar crossmember back to the beginning of my boxes and they both are the same measurements However when I cut out the boxes on the frame the cuts are a little bit different
Keep in mind everything is level I have both boxes in. And I have a piece of all thread that’s going through the boxes and into the old hangers and that all thread is level
I check the measurements on the boxes and the Holes
drill are exactly the same from front to back and top to bottom

I Put a level on the very back of the boxes that go into the curve Of the. Frame and those are level




The question I have is the length of the cuts Are different I can’t see how or I could be wrong maybe the curvature of the frame is different from right to left. One cut is a half inch longer than the other

Basically when welding on top of the box the distance would be greater to one side than the other has anybody came across this