A body 8&3/4. Landrum springs. all (4) corners of the leafs are at the same location (rear shackle mts were welded on). should I (1) raise each rear corner till each spring (at the locating nub for instance) is the same height as the other side then (2) center the housing (3) then rotate the housing till the pig face angle is correct (5 or 6 up iirc but I will check Docs email) then tack em OR should I weld the pads with the whole housing out of the car on a level pad (with the face angle correct). I thought this'd be easy but having second thoughts! What SHOULD I do? thank you for your time.