As said it'll have a specific OE angle. You might get the car setup & weld em at the particular angle you need to get YOUR vehicle ujoints parallel but in different planes but wait & see what the Doc has to say. I'm in the same situation & am wondering if I should get the leafs as level as I can then set the housing on top of em then tack em so they are parrallel/correct angle or get the pads equal on the bench.