| 1 | 0 | 3 | 4 | 3 | 4 |
2004 GMC Sierra 1500 Specs - Exterior and Interior Dimensions
| Body | Regular Cab 6.5ft bed | Regular Cab 8ft bed | Extended Cab 6.5ft bed | Extended Cab 8ft bed | Crew Cab 5.5ft bed |
| Wheelbase | 119.0 in | 133.0 in | 143.5 in | 157.5 in | 143.5 in |
| Length | 202.9 in | 221.9 in | 227.4 in | 246.6 in | 227.5 in |
| Width | 78.5 in | 78.5 in | 78.5 in | 78.5 in | 78.5 in |
| Height | 71.2 in | 71.0 in | 71.2 in | 70.8 in | 72.6 in |
| Curb Weight | 4261 lb. | 4398 lb. | 4625 lb. | 4719 lb. | 4862 lb. |
| Fuel Capacity | 26.0 gal. | 34.0 gal. | 26.0 gal. | 34.0 gal. | 26.0 gal. |
| Headroom, Row 1 | 41.0 in | 41.0 in | 41.0 in | 41.0 in | 40.7 in |
| Shoulder Room, Row 1 | 61.4 in | 61.4 in | 61.4 in | 61.4 in | 61.4 in |
| Hip Room, Row 1 | 63.9 in | 63.9 in | 63.9 in | 63.9 in | 63.9 in |
| Legroom, Row 1 | 41.3 in | 41.3 in | 41.3 in | 41.3 in | 41.3 in |
| Headroom, Row 2 | 0.0 in | 0.0 in | 38.4 in | 38.4 in | 40.2 in |
| Shoulder Room, Row 2 | 0.0 in | 0.0 in | 65.1 in | 65.1 in | 65.1 in |
| Hip Room, Row 2 | 0.0 in | 0.0 in | 61.4 in | 61.4 in | 61.4 in |
| Legroom, Row 2 | 0.0 in | 0.0 in | 33.7 in | 33.7 in | 39.1 in |
| Total Legroom | 41.3 in (over 1 rows) | 41.3 in (over 1 rows) | 75 in (over 2 rows) | 75 in (over 2 rows) | 80.4 in (over 2 rows) |
What Our Members Are Saying about the Seat Room and Comfort of the 2004 GMC Sierra 1500
| 2004 GMC Sierra 1500 Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2004 | 4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range |
Better than most competitors see full GMC Sierra 1500 review |
2004 GMC Sierra 1500 Specs: Engines, Transmissions, and Drivetrains
| Engines | Transmissions | Drivetrains |
| 4.3L V6 OHV-2v 200 hp@4600 260 lb-ft@2800 |
4-speed automatic | RWD |
| 4WD, part-time w/low range | ||
| 5-speed manual | RWD | |
| 4WD, part-time w/low range | ||
| 4.8L V8 OHV-2v 285 hp@5200 295 lb-ft@4000 |
4-speed automatic | RWD |
| 4WD, part-time w/low range | ||
| 4WD w/low range | ||
| 5-speed manual | RWD | |
| 4WD, part-time w/low range | ||
| 4WD w/low range | ||
| 5.3L V8 OHV-2v 295 hp@5200 335 lb-ft@4000 |
4-speed automatic | RWD |
| 4WD, part-time w/low range | ||
| 4WD w/low range | ||
| 6.0L V8 OHV-2v 325 hp@5000 370 lb-ft@4000 |
4-speed automatic | AWD |
See TrueDelta's information for all Pickups
See TrueDelta's information for all GMC models.
