| Teams 1991 Mountain Dew 500 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 1 | Bill Davis Racing | Mark Martin | Ford |
| 1 | Bill Davis Racing | Jeff Gordon | Ford |
| 5 | Eclipse Racing | Richard Lasater | Chevrolet |
| 5 | Ard Motorsports | Ed Berrier | Oldsmobile |
| 6 | Houston Racing | Tommy Houston | Buick |
| 8 | Team R Racing | Bobby Dotter | Buick |
| 9 | Falcon Racing | Troy Beebe | Chevrolet |
| 10 | Ernie Irvan Racing | Ernie Irvan | Chevrolet |
| 15 | Ken Schrader Racing | Ken Schrader | Chevrolet |
| 16 | Bown Racing | Jim Bown | Buick |
| 23 | Hale-Holbrook Racing | Kenny Gragg | Oldsmobile |
| 25 | Beverly Racing | Jimmy Hensley | Oldsmobile |
| 27 | A.G. Dillard Motorsports | Elton Sawyer | Buick |
| 28 | Bill Ondocsin | Mike Oliver | Pontiac |
| 31 | Grissom Racing | Steve Grissom | Oldsmobile |
| 32 | DAJ Racing | Dale Jarrett | Pontiac |
| 34 | Frank Cicci Racing | Todd Bodine | Buick |
| 36 | Rusty Wallace Racing | Kenny Wallace | Pontiac |
| 44 | Labonte Racing | Bobby Labonte | Oldsmobile |
| 45 | Laughlin Racing | Jeff Burton | Pontiac |
| 49 | Ferree Racing | Ed Ferree | Buick |
| 52 | Day Enterprise Racing | Butch Miller | Chevrolet |
| 59 | Alliance Motorsports | Robert Pressley | Oldsmobile |
| 63 | Hensley Motorsparts | Chuck Bown | Pontiac |
| 72 | Parker Racing | Tracy Leslie | Oldsmobile |
| 79 | K.R. Rezendes, Inc. | Dave Rezendes | Oldsmobile |
| 86 | Pinnacle Racing | Jeff Green | Chevrolet |
| 87 | NEMCO Motorsports | Joe Nemechek | Chevrolet |
| 96 | Mark Thomas Racing | Tom Peck | Oldsmobile |