Hello Harry449,
As others have posted, two different starters were utilized, depending on whether your vehicle is equipped with an automatic or manual transmission. If you are the original owner or know the history of your car, that would be helpful to determine if your starter is the original production-installed unit. With the '72s now 51 years old, there is more than a good chance that most of these cars have seen a starter replacement or two during their lifespan.
It is possible for some early in the '72 production year cars to have D0AF-11001-C (M/T) or D0AF-11001-B (A/T) starter. These were '70-71 engineering ID numbers that I have seen in some early 72s. As posted by Midlife, the '65-72 MPC (Master Parts Catalog) lists the D2AF-11001-DA (M/T) and D2AF-CA (A/T) starting with the '72 models. The same starter was used on the '73 models. The service part number on both A/T (C2OZ-11002-B) and M/T (C5TZ-11002-D) versions remained the same through '74 when Ford replaced them with '74 engineering and service part numbers. These starters are all functionally the same, regardless of engineering or part number. These starters' origins go back to 1962 when the 221/260 engines were released, so it would be possible to see many different ID numbers when dealing with a rebuilt starter.
I have seen starter housings with the engineering ID# stamped in the housing, ink stamped, and paper/mylar labels. Hopefully, your housing is stamped, and the number is legible. If you pull your starter and find a Ford number other than the one listed above, just let someone here know, and we will attempt to ID it. The A/T version changed several times when Ford was still building pushrod engines. Since top loader M/T cars were slowly disappearing from the landscape, the starter only changed two more times, all with truck part numbers.