I am considering buying a third gen convertible, possibly a Z or an IROC and would like to know if there is anything unique about these vehicles that I should look for. Also, were there any years that were better/worse than others?

Thanks for your help

 

The condition of the top isn't too important since new ones are available. If it requires replacement just figure to spend another $600 or so for a new one. It is very important that all the parts for the top mechanism (frame) are there, since no aftermarket replacement is available and most parts are discontinued. The same holds true for the interior trim pieces such as the A-piller trim plastic piece that covers the upper windshield and the latches and the #1 bow trim piece. Also the seatbelt plastic trim pieces. These have recently become available aftermarket, but are pricey. Also note the condition of the top seals along the window and the #6 bow seal. To make a long story short, pay the extra and buy the best example you can find. You'll save a lot of time, frustration and money over buying a beater and trying to restore it. The problem with that route is there were several running changes during the years ASC did the convertible conversions. Also stay away from the nearly dozen or so other aftermarket convertible conversions that were done prior to ASC dominating the market and gaining factory authorization for their conversion. The newer the model the better. They improved squeaks and rattles during the last couple of years through more extensive use of structural adhesives (glue). Keep in mind that these cars have compromised frame strength due to the top being lopped off. The reinforcements ASC added aren't sufficient. Welding in a set of SFC's is a MUST. Unfortunately there are few SFC's that will fit a convertible, since most mount along the pinch-rail behind the GFX where ASC riveted a formed sheet metal reinforcement. Alston and Spohn are two brands that are designed to fit a convertible. I've had Alston SFC's on mine and recommended them years before I started selling them. All that aside, top-down cruising in a convertible can't be beat!

Good luck,

Lon Salgren
Top-Down Solutions