| 1 | 1978-01 |
J.D. McDuffie
J. McDuffie | 21 | 28 | 70 |  | Simpson Saftey Equipment | 45 | 0 |
| 2 | 1978-02 |
J.D. McDuffie
J. McDuffie | 22 | 30 | 70 | | Bailey Excavating | 132 | 0 |
| 3 | 1978-03 |
J.D. McDuffie
J. McDuffie | 13 | 27 | 70 | | McDuffie Racing | 154 | 0 |
| 4 | 1978-04 |
J.D. McDuffie
J. McDuffie | 18 | 25 | 70 | | McDuffie Racing | 266 | 0 |
| 5 | 1978-05 |
J.D. McDuffie
J. McDuffie | 35 | 16 | 70 | | Bailey Excavating | 312 | 0 |
| 6 | 1978-06 |
J.D. McDuffie
J. McDuffie | 14 | 28 | 70 | | Bailey Excavating | 16 | 0 |
| 7 | 1978-07 |
J.D. McDuffie
J. McDuffie | 24 | 11 | 70 | | Bailey Excavating | 342 | 0 |
| 8 | 1978-08 |
J.D. McDuffie
J. McDuffie | 14 | 7 | 70 | | Bailey Excavating | 390 | 0 |
| 9 | 1978-09 |
J.D. McDuffie
J. McDuffie | 10 | 26 | 70 | | Bailey Excavating | 140 | 0 |
| 10 | 1978-10 |
J.D. McDuffie
J. McDuffie | 40 | 40 | 70 | | Bailey Excavating | 5 | 0 |
| 11 | 1978-11 |
J.D. McDuffie
J. McDuffie | 12 | 34 | 70 | | Perry's Steak House | 35 | 0 |
| 12 | 1978-12 |
J.D. McDuffie
J. McDuffie | 30 | 22 | 70 | | Bailey Excavating | 369 | 0 |
| 13 | 1978-13 |
J.D. McDuffie
J. McDuffie | 11 | 12 | 70 | | Bailey Excavating | 388 | 0 |
| 14 | 1978-14 |
J.D. McDuffie
J. McDuffie | 19 | 24 | 70 | | McDuffie Racing | 72 | 0 |
| 15 | 1978-15 |
J.D. McDuffie
J. McDuffie | 28 | 13 | 70 | | Bailey Excavating | 191 | 0 |
| 16 | 1978-16 |
J.D. McDuffie
J. McDuffie | 20 | 12 | 70 | | Bailey Excavating | 153 | 0 |
| 17 | 1978-17 |
J.D. McDuffie
J. McDuffie | 4 | 5 | 70 | | Bailey Excavating | 413 | 1 |
| 18 | 1978-18 |
J.D. McDuffie
J. McDuffie | 18 | 10 | 70 | | Bailey Excavating | 194 | 0 |
| 19 | 1978-19 |
J.D. McDuffie
J. McDuffie | 23 | 17 | 70 | | Bailey Excavating | 172 | 0 |
| 20 | 1978-20 |
J.D. McDuffie
J. McDuffie | 9 | 7 | 70 | | Bailey Excavating | 197 | 3 |
| 21 | 1978-21 |
J.D. McDuffie
J. McDuffie | 5 | 8 | 70 | | Bailey Excavating | 481 | 0 |
| 22 | 1978-22 |
J.D. McDuffie
J. McDuffie | 24 | 20 | 70 | | Bailey Excavating | 281 | 0 |
| 23 | 1978-23 |
J.D. McDuffie
J. McDuffie | 12 | 8 | 70 | | Bailey Excavating | 391 | 0 |
| 24 | 1978-24 |
J.D. McDuffie
J. McDuffie | 1 | 33 | 70 | | Bailey Excavating | 80 | 10 |
| 25 | 1978-25 |
J.D. McDuffie
J. McDuffie | 11 | 22 | 70 | | Bailey Excavating | 409 | 0 |
| 26 | 1978-26 |
J.D. McDuffie
J. McDuffie | 14 | 11 | 70 | | Bailey Excavating | 385 | 0 |
| 27 | 1978-27 |
J.D. McDuffie
J. McDuffie | 22 | 11 | 70 | | Bailey Excavating | 324 | 0 |
| 28 | 1978-28 |
J.D. McDuffie
J. McDuffie | 20 | 12 | 70 | | Bailey Excavating | 468 | 1 |
| 29 | 1978-29 |
J.D. McDuffie
J. McDuffie | 16 | 14 | 70 | | Bailey Excavating | 317 | 0 |
| 30 | 1978-30 |
J.D. McDuffie
J. McDuffie | 22 | 26 | 70 | | Bailey Excavating | 178 | 0 |
