I have a rear wing/spoiler and the stands are marked with ' TEACO ' on the downside and no other markings. Recently I have seen a couple of these, rear wing assemblies, for sale and the stands are marked ' DOZB '. Are the DOZB's assembly line or the service part/over the counter version for sale in the 80's ? Is the ' TEACO ' the assembly line installed piece or is it also a service edition. Just a curiosity question and if someone knows the difference great if not it is of no real importance. Thanks, Brian