SP H-24-66 page: 1965 system renumbering
1965 Renumbering:
In late 1965, the SP began a program to renumber the majority of its locomotive fleet into a consolodated system without regard for reporting mark. The FM Train Masters were numbered above the slot reserved for the SP's passenger-equipped GP9's.
SP 3020-3035:
| 1965 numbers | Orig. numbers | notes |
| SP 3020 | SP 4800 | demonstrator TM-3 |
| SP 3021 | SP 4801 | demonstrator TM-4 |
| SP 3022 | SP 4802 | |
| SP 3023 | SP 4803 | |
| SP 3024 | SP 4804 | |
| SP 3025 | SP 4805 | |
| SP 3026 | SP 4806 | |
| SP 3027 | SP 4807 | |
| SP 3028 | SP 4808 | |
| SP 3029 | SP 4809 | |
| SP 3030 | SP 4810 | |
| SP 3031 | SP 4811 | |
| SP 3032 | SP 4812 | |
| SP 3033 | SP 4813 | |
| SP 3034 | SP 4814 | |
| SP 3035 | SP 4815 |