Post pictures of what you have done so far to mount motor/trans. Show what crossmember you added and proximity to spring mount.....and the problems you see. This is not a big deal. Too much worry about the spring mount support. Hold off on any further if you want an opinion. Till I see good clear pics. The issue of moving the crossmember a little to accommodate a motor swap is not a big danger and nothing bad will happen with springs. Boxing is not necessary usually. You may have added to your troubles.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn