I am finally down to the last of the metal work on the 66 project. I need some confirmation of my information. I am missing the door data plate. But I actually have the core support tag with the matching vin number. Matches both fender aprons and the title. I have the tag off the original rear end. So I think I have everything I need to get a new data plate made but could use a sanity check. I have not found a layout of the core support tag on the internet yet so here it is: % 641 26 G5 6T09A277*** 63A T 26 4 SPEED Rear end tag: (Really hard to read...) WCZ-F 3 : 00 6FD 931 Yea, holding it at an angle I can make out all the characters...so that's all correct. Found a rear end tag decoder: Comet '65 SW Cougar '67-68 Falcon '64 Mustang '65-71 3.00 8 in NL 28 spline So I can't figure out the DSO number. I think that's the only one. My new data plate would read: 63A T 26 5G ?? 1 5 Is there a way to figure out the DSO? I can't find what the 641 represents on the core support tag... Thanks.