prymertyme
+1y
the real difference between those years is that in the earlier models, the balljoints were pressed into the beam, and later, they were pressed into the spindle.
if they are a fabricated I beam or a box type beam, it is very common to have clearance issues with the beam and engine crossmember, DJM tubular beams will give more clearance.
i've seen crossmembers that have been cut for clearance, as well as oil pans that have been modified. i've also seen (scary) i-beams that have been notched.