yeah at least... where are you measuring the bar from... I can go out and lay under mine real quick and measure the bar.... are you measuring the to back bar ( the one in pic) to the other side? I want to make sure I'm measuring it the same as you...I think you are right. I found info online that states 1988 has a measurement of 31 5/8" to the outside bolts in that location. The brace measures 28.5". That means there should only be 1.5" between the two bolts. If there is, then my car is off.
Looking at the pic..it looks a little more than 1.5"
Edit: found the info. 45mm or 1.8" is the spacing. That means the inner bolt holes should be 28".
The bar measures around 28.5". That looks like it's off 1/2" right?