For anyone who has wanted to put an Optima battery in their fox car, but was disappointed when their web site make/model lookup announced "we do not make a battery to fit your car." I can tell you, the 34/78 size red top fits perfectly in my 93 GT (don't know about 94-up or others). The battery came with an assortment of adapters, one of which was essentially a drop-in replacement for the factory hold-down wedge. I just put the battery in the tray, put the included hold-down in place of the factory hold-down, put in the factory bolt and tightened it down. Fits great and snug! Now, why would they go and say "sorry we don't make one for your car" when this one fits so well. Who knows, but I would have bought one a long time ago if I had known it would drop right in.
John
93 GT