I have some new information but unfortunately I do not have permission to share the documents. I can tell about what is in them and wanted to add to some posts from the first page of this thread, the below is 62 only at this time, I am unsure if the 63 document can be found without another trip to Detroit. The first part is about the tags found on the right front brake drum if still there. I found that the 104 and yellow paint mark means power steering and no A/C. 103 and blue paint is manual steering and no A/C. 112 and green is manual steering and no A/C. 113 and orange is power steering AND A/C.

For the radiator, the 149 is manual transmission (3 or 4 speed) and no A/C. 147 will be for all Jetfire WITH factory installed A/C. 148 is for automatic transmission and no A/C.

OK, I need to do more research on radiators. On page two of this thread I noted that the 62 and 63 radiators are different. This may not be the case… I now know that there are three different codes for the Jetfire radiator for both years. I don’t think this is a year difference but an option difference. I am likely picking up a 63 Jetfire 4 speed car soon so I will see if that 63 has the same radiator as my 62 4 speed. Both cars have the same options that determine the radiator usage. If they are the same it will confirm that it is an option difference over a year change.

Just found this paint dab on an original 63 steering link. This was a front suspension with the 104 code on yellow tape. I am guessing that this yellow paint has to do with the yellow 104 code tape on the brake drum.

I need to look more into it but it looks like the rear control arms were specific to the Jetfire. I would suspect that it is a bushing durometer difference and the arms are the same.

Found this under the fluid tank of our 4 speed car. I assume it is an NC and not an NO?