| Teams 1998 Sam's Town Las Vegas 300 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 0 | Buckshot Racing | Buckshot Jones | Pontiac |
| 3 | Dale Earnhardt Inc. | Dale Earnhardt, Jr. | Chevrolet |
| 4 | Phoenix Racing | Jeff Purvis | Chevrolet |
| 6 | Joe Bessey Motorsports | Joe Bessey | Chevrolet |
| 9 | Roush Racing | Jeff Burton | Ford |
| 10 | Phil Parsons Racing | Phil Parsons | Chevrolet |
| 12 | Spencer Motor Ventures | Jimmy Spencer | Chevrolet |
| 14 | Michael Waltrip Racing | Patty Moise | Ford |
| 17 | Reiser Enterprises | Matt Kenseth | Chevrolet |
| 20 | Keystone Motorsports | Blaise Alexander | Chevrolet |
| 21 | Michael Waltrip Racing | Michael Waltrip | Ford |
| 29 | Diamond Ridge Motorsports | Hermie Sadler | Chevrolet |
| 30 | Jeffrey Welliver | Mike Cope | Chevrolet |
| 32 | DAJ Racing | Dale Jarrett | Ford |
| 33 | BACE Motorsports | Tim Fedewa | Chevrolet |
| 34 | Frank Cicci Racing | Mike McLaughlin | Chevrolet |
| 36 | Team 34 | Matt Hutter | Pontiac |
| 37 | Brewco Motorsports | Mark Green | Chevrolet |
| 38 | Bob Sutton | Elton Sawyer | Ford |
| 40 | Specialty Racing | Kevin Lepage | Chevrolet |
| 44 | Joe Gibbs Racing | Tony Stewart | Pontiac |
| 45 | Laughlin Racing | Brad Loney | Chevrolet |
| 47 | Innovative Motorsports | Andy Santerre | Chevrolet |
| 48 | Porter Racing | Dale Shaw | Ford |
| 50 | Washington-Irving Motorsports | Jimmy Foster | Ford |
| 56 | Excel Motorsports | Jeff Krogh | Chevrolet |
| 57 | Progressive Motorsports | Jason Keller | Chevrolet |
| 59 | Frank Schwantz | Robert Pressley | Chevrolet |
| 60 | Roush Racing | Mark Martin | Ford |
| 63 | Hensley Motorsparts | Tracy Leslie | Chevrolet |
| 64 | Shoemaker Racing | Dick Trickle | Chevrolet |
| 66 | Diamond Ridge Motorsports | Elliott Sadler | Chevrolet |
| 72 | Parker Racing | Mike Dillon | Chevrolet |
| 74 | BACE Motorsports | Randy LaJoie | Chevrolet |
| 77 | PRW Racing | Ed Berrier | Ford |
| 80 | Excel Motorsports | Mark Krogh | Chevrolet |
| 83 | Grubb Motorsports | Wayne Grubb | Chevrolet |
| 85 | Stegall Motorsports | Shane Hall | Chevrolet |
| 87 | NEMCO Motorsports | Joe Nemechek | Chevrolet |
| 88 | Lone Star Motorsports | Kevin Schwantz | Chevrolet |
| 89 | Northstar Motorsports | Stanton Barrett | Ford |
| 96 | Andretti-Laird Racing | Mike Stefanik | Pontiac |
| 99 | J & J Racing | Glenn Allen, Jr. | Chevrolet |