Dude, fstlane88.. I was just re-examining the pics and we have different radiators.. before I realized the tabs were not present on mine but on closer inspection of the top of the radiator, they are completely different even though the they look very similar. from my pics it looks as though my screws go into an actual piece on the rad, versus your tabs.
and you're an 88, mine is an 87 so by logic they should be the same.. I wonder if perhaps one of us has the later radiator or perhaps an odd ball.
EDIT: I was just looking over some pics and realized that there are more variances than I had previously thought. I was not aware there were different radiators throughout the years besides the obvious jza70 rad thats composite IIRC. perhaps many ppl had them replaced over time with OE copies or something, or I could just be ignorant. this is probably better answered by Jeff Lange or someone who would know tech differences on this level.