| 1 | 1977-01 |
J.D. McDuffie
J. McDuffie | 34 | 29 | 70 |  | McDuffie Racing | 25 | 0 |
| 2 | 1977-02 |
J.D. McDuffie
J. McDuffie | 24 | 13 | 70 | | Sanford Auto Parts | 184 | 0 |
| 3 | 1977-03 |
J.D. McDuffie
J. McDuffie | 10 | 16 | 70 | | McDuffie Racing | 234 | 0 |
| 4 | 1977-04 |
J.D. McDuffie
J. McDuffie | 21 | 15 | 70 | | McDuffie Racing | 446 | 0 |
| 5 | 1977-05 |
J.D. McDuffie
J. McDuffie | 21 | 31 | 70 | | McDuffie Racing | 208 | 0 |
| 6 | 1977-06 |
J.D. McDuffie
J. McDuffie | 14 | 22 | 70 | | McDuffie Racing | 275 | 0 |
| 7 | 1977-07 |
J.D. McDuffie
J. McDuffie | 22 | 19 | 70 | | McDuffie Racing | 305 | 0 |
| 8 | 1977-08 |
J.D. McDuffie
J. McDuffie | 12 | 20 | 70 | | McDuffie Racing | 420 | 0 |
| 9 | 1977-09 |
J.D. McDuffie
J. McDuffie | 20 | 9 | 70 | | McDuffie Racing | 369 | 0 |
| 10 | 1977-10 |
J.D. McDuffie
J. McDuffie | 16 | 26 | 70 | | McDuffie Racing | 117 | 1 |
| 11 | 1977-11 |
J.D. McDuffie
J. McDuffie | 11 | 24 | 70 | | McDuffie Racing | 176 | 0 |
| 12 | 1977-12 |
J.D. McDuffie
J. McDuffie | 12 | 13 | 70 | | McDuffie Racing | 480 | 0 |
| 13 | 1977-13 |
J.D. McDuffie
J. McDuffie | 29 | 25 | 70 | | McDuffie Racing | 347 | 0 |
| 14 | 1977-14 |
J.D. McDuffie
J. McDuffie | 20 | 33 | 70 | | McDuffie Racing | 9 | 0 |
| 15 | 1977-15 |
J.D. McDuffie
J. McDuffie | 27 | 20 | 70 | | McDuffie Racing | 189 | 0 |
| 16 | 1977-16 |
J.D. McDuffie
J. McDuffie | 22 | 24 | 70 | | McDuffie Racing | 143 | 0 |
| 17 | 1977-17 |
J.D. McDuffie
J. McDuffie | 14 | 8 | 70 | | McDuffie Racing | 408 | 0 |
| 18 | 1977-18 |
J.D. McDuffie
J. McDuffie | 23 | 14 | 70 | | McDuffie Racing | 192 | 0 |
| 19 | 1977-19 |
J.D. McDuffie
J. McDuffie | 22 | 8 | 70 | | Bailey Excavating | 183 | 0 |
| 20 | 1977-20 |
J.D. McDuffie
J. McDuffie | 20 | 20 | 70 | | Bailey Excavating | 186 | 0 |
| 21 | 1977-21 |
J.D. McDuffie
J. McDuffie | 12 | 18 | 70 | | Bailey Excavating | 215 | 0 |
| 22 | 1977-22 |
J.D. McDuffie
J. McDuffie | 19 | 12 | 70 | | Bailey Excavating | 350 | 0 |
| 23 | 1977-23 |
J.D. McDuffie
J. McDuffie | 10 | 13 | 70 | | McDuffie Racing | 379 | 0 |
| 24 | 1977-24 |
J.D. McDuffie
J. McDuffie | 13 | 12 | 70 | | McDuffie Racing | 482 | 0 |
| 25 | 1977-25 |
J.D. McDuffie
J. McDuffie | 12 | 17 | 70 | | McDuffie Racing | 400 | 0 |
| 26 | 1977-26 |
J.D. McDuffie
J. McDuffie | 11 | 23 | 70 | | McDuffie Racing | 286 | 0 |
| 27 | 1977-27 |
J.D. McDuffie
J. McDuffie | 29 | 15 | 70 | | McDuffie Racing | 323 | 0 |
| 28 | 1977-28 |
J.D. McDuffie
J. McDuffie | 20 | 10 | 70 | | McDuffie Racing | 473 | 0 |
| 29 | 1977-29 |
J.D. McDuffie
J. McDuffie | 18 | 27 | 70 | | Transmissions Unlimited | 258 | 0 |
| 30 | 1977-30 |
J.D. McDuffie
J. McDuffie | 26 | 20 | 70 | | Transmissions Unlimited | 190 | 0 |
