| Teams 1966 Grand National Race No. 21 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 0 | Reid Shaw | Darel Dieringer | Ford |
| 4 | DeWitt Racing | John Sears | Ford |
| 5 | Bob Derrington | Larry Manning | Plymouth |
| 6 | Owens Racing | David Pearson | Dodge |
| 9 | Truett Rodgers | Roy Tyner | Chevrolet |
| 19 | J.T. Putney | J.T. Putney | Chevrolet |
| 20 | Clyde Lynn | Clyde Lynn | Ford |
| 34 | Scott Racing | Wendell Scott | Ford |
| 43 | Petty Enterprises | Richard Petty | Plymouth |
| 48 | Bud Hartje | James Hylton | Dodge |
| 53 | David Warren | Jimmy Helms | Ford |
| 55 | Lyle Stelter | Tiny Lund | Ford |
| 58 | Gene Hobby | Gene Hobby | Dodge |
| 59 | Pistone Racing | Tom Pistone | Ford |
| 64 | Elmo Langley & Henry Woodfield | Elmo Langley | Ford |
| 70 | McDuffie Racing | J.D. McDuffie | Ford |
| 73 | Joan Petre | Buddy Baker | Ford |
| 80 | Allen McMillion | G.T. Nolan | Pontiac |
| 83 | Allen McMillion | Worth McMillion | Pontiac |
| 86 | Buck Baker Racing | Neil Castles | Plymouth |
| 87 | Buck Baker Racing | Ray Hill | Chevrolet |
| 88 | Buck Baker Racing | Paul Connors | Oldsmobile |
| 92 | W.S. Jenkins | Hank Thomas | Ford |
| 96 | Homer O'Dell | Billy Stiles | Ford |