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Message: <blockquote data-quote="secluff" data-source="post: 412052" data-attributes="member: 2297">Hello JW,Your "ZB" wheel is the same as the "JL" rim, as discussed in the previous posts. This particular wheel has undergone several part number changes over the years, resulting in the different ID codes near the valve stem hole. The application for this space saver is Torino/Gran Torino, LTD II, '77-79 T-Bird, and sister Mercury vehicles, which required the larger H-78 X 14" tire. This space-saver tire is found more often since it was offered on several car lines and models and was also a standalone option. The F-78 X 14" version saw limited use on the Mustangs and was only available on the '71-73 if equipped with the F60 X 15" tire ('71-72) or the optional fold-down rear seat.The rim will fit your Mustang, but the tire is much larger than the Ford specified tire. The pre-2000 date code for tires would indicate the 13th week of '75 for the 135 on your tire. At this point, any of these tires would only be safe for show use. It does have the safety valve stem, which was the result of an earlier recall. People who didn't want to purchase a new tire inflater canister were over-inflating the tires with a standard air hose and causing the tire to explode.Unless you are Concours level showing your car or a Mustang Club of America (MCA) event, the tire size wouldn't be a problem. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" /></blockquote>

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