My CS is a 302, auto. with air conditioning, nothing else different from the norm. Would that normally take a group 24 or 27 battery? I'm getting ready to order a new tray and want to get the right one. What are the measurements of the two different trays. Most of my old one is still there so I could measure and match. Thanks.
Steve ???

Your car takes a group 24 tray and battery (which is smaller than a 27).