SP SD35 Renumbering
These units were some of the most renumbered units on the SP. For such a small fleet of engines, some units wore five different numbers throughout their SP lives.
SD35 Renumberings:
| orig. | 1965 | GRIP | switcher | 1993 |
| SP 4816 | SP 6900 | SP 4700 | SP 2961 | |
| SP 4817 | SP 6901 | |||
| SP 4818 | SP 6902 | SP 6952 | SP 3104 | |
| SP 4819 | SP 6903 | SP 4709 | SP 2970 | |
| SP 4820 | SP 6904 | |||
| SP 4821 | SP 6905 | SP 4705 | SP 2966 | |
| SP 4822 | SP 6906 | SP 4701 | SP 2962 | |
| SP 4823 | SP 6907 | SP 4708 | SP 2969 | |
| SP 4824 | SP 6908 | |||
| SP 4825 | SP 6909 | |||
| SP 4826 | SP 6910 | |||
| SP 4827 | SP 6911 | |||
| SP 4828 | SP 6912 | SP 6951 | SP 3103 | SP 2958 |
| SP 4829 | SP 6913 | SP 4704 | SP 2965 | |
| SP 4830 | SP 6914 | SP 6953 | SP 3105 | SP 2959 |
| SP 4831 | SP 6915 | |||
| SP 4832 | SP 6916 | |||
| SP 4833 | SP 6917 | |||
| SP 4834 | SP 6918 | SP 4702 | SP 2963 | |
| SP 4835 | SP 6919 | SP 3106 | ||
| SP 4836 | SP 6920 | |||
| SP 4837 | SP 6921 | |||
| SP 4838 | SP 6922 | SP 6950 | SP 3102 | SP 2957 |
| SP 4839 | SP 6923 | SP 4703 | SP 2964 | |
| SP 4840 | SP 6924 | SP 3107 | ||
| SP 4841 | SP 6925 | SP 4706 | SP 2967 | |
| SP 4842 | SP 6926 | SP 4707 | SP 2968 | |
| SP 4843 | SP 6927 | SP 3108 | ||
| SP 4844 | SP 6928 | SP 3109 |