| Teams 1984 Champion Spark Plug 400 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 1 | Heveron Racing | Doug Heveron | Chevrolet |
| 1 | Ellington Racing | Lake Speed | Chevrolet |
| 2 | Harrington Racing | Rodney Combs | Buick |
| 3 | Richard Childress Racing | Dale Earnhardt | Chevrolet |
| 4 | Morgan McClure Motorsports | Tommy Ellis | Chevrolet |
| 5 | Hendrick Motorsports | Geoffrey Bodine | Chevrolet |
| 6 | US Racing | Clark Dwyer | Chevrolet |
| 7 | Petty Enterprises | Kyle Petty | Ford |
| 8 | Stavola Brothers Racing | Bobby Hillin, Jr. | Chevrolet |
| 9 | Melling Racing | Bill Elliott | Ford |
| 11 | Junior Johnson and Associates | Darrell Waltrip | Chevrolet |
| 12 | Junior Johnson and Associates | Neil Bonnett | Chevrolet |
| 15 | Bud Moore Engineering | Ricky Rudd | Ford |
| 16 | Bobby Hawkins Racing | David Pearson | Chevrolet |
| 17 | Hamby Racing | Morgan Shepherd | Chevrolet |
| 21 | Wood Brothers Racing | Buddy Baker | Ford |
| 22 | DiGard Racing | Bobby Allison | Buick |
| 27 | Blue Max Racing | Tim Richmond | Pontiac |
| 28 | Ranier Racing with MDM | Cale Yarborough | Chevrolet |
| 33 | Mach 1 Racing | Harry Gant | Chevrolet |
| 41 | Ronnie Thomas | Ronnie Thomas | Chevrolet |
| 43 | Baker Curb Racing | Richard Petty | Pontiac |
| 44 | Hagan Racing | Terry Labonte | Chevrolet |
| 45 | Bob Morris | Jeff Hooker | Pontiac |
| 47 | Race Hill Farms Racing | Ron Bouchard | Buick |
| 48 | Hylton Engineering | Trevor Boys | Chevrolet |
| 51 | Sacks & Sons Racing | Greg Sacks | Chevrolet |
| 52 | Jimmy Means Racing | Jimmy Means | Chevrolet |
| 55 | Johnny Hayes Racing | Benny Parsons | Chevrolet |
| 64 | Langley Racing | Ken Schrader | Ford |
| 66 | Johnny Hayes Racing | Phil Parsons | Chevrolet |
| 67 | Arrington Racing | Buddy Arrington | Chrysler |
| 71 | Marcis Auto Racing | Mike Alexander | Oldsmobile |
| 75 | RahMoc Entrprises | Dave Marcis | Pontiac |
| 84 | Robert McEntyre Racing | Jody Ridley | Chevrolet |
| 88 | Cliff Stewart Racing | Rusty Wallace | Pontiac |
| 90 | Donlavey Racing | Dick Brooks | Ford |
| 95 | Sadler Brothers Racing | Sterling Marlin | Chevrolet |
| 97 | Sanderson Racing | Dean Combs | Chevrolet |
| 98 | Benfield Racing | Joe Ruttman | Chevrolet |