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I checked this last month after finding a few of the 30mm front bars at a local junkyard. The 88 and later bar is several inches wider at the end link mounting location than the early bar. Definitely won't fit. The pic you linked to should be for an early car. The lever end of the bar for the later cars has a "double jog" to it to make it wider and to clear the tires at full lock.
AFAIK, it should fit all the 88 and later cars. It doesn't give a part number, just a description.
Strike that. I just tried to process an order for it to see what the shipping cost would be and got this:
These part numbers were not found in our database: 14105130. The part numbers you seek have either changed to a new part number or no longer available from GM. Please email customerservice@GmPartsDirect.com to verify the correct part numbers needed.