Chevrolet Silverado I (1999-2006) How to Remove the Bumpers

Production Years and Model Code

The first generation of the Chevrolet Silverado was produced from 1999 to 2006, although the "Silverado" name appeared even earlier. Before 1999, it was simply the top trim level of the Chevrolet C/K pickup trucks. Starting in 1999, the Silverado became a separate model, replacing the C/K lineup.

The model code for the first generation is GMT800, indicating a shared platform with the GMC Sierra. In 2003, the pickup underwent a facelift that affected its appearance and technical specifications.

 

Model Description

Design and Construction

The Silverado I featured a classic American pickup design: a massive hood, a wide grille, and angular lines. After the 2003 facelift, the grille became larger, and the headlights gained a more expressive look.

The pickup was offered in three cab configurations:

  • Regular Cab (2 doors, 2–3 seats)
  • Extended Cab (2 full-size doors + 2 small rear doors, 4–5 seats)
  • Crew Cab (4 full-size doors, 5–6 seats)

The bed was available in two sizes: short (5.5 feet) and standard (6.5 feet), as well as a Long Bed version (8 feet).

Engines and Transmissions

The Silverado I came with a wide range of engines:

  • 4.3L V6 (193–200 HP) – Base option for light tasks.
  • 4.8L V8 (255–285 HP) – Balanced power and fuel efficiency.
  • 5.3L V8 (270–295 HP) – The most popular engine.
  • 6.0L V8 (300–345 HP) – For heavy loads and towing.
  • 8.1L V8 (340 HP) – A rare but powerful engine for the 2500HD/3500HD versions.

Transmission options:

  • 4-speed automatic 4L60E (for lower trims)
  • 4-speed automatic 4L80E (for heavy-duty models)
  • 5-speed manual (rare, mostly for base versions)

Drivetrain – Rear-wheel drive (RWD) or four-wheel drive (4WD).

How to Remove the Front Bumper

  1. Open the hood.
  2. Under the hood, remove six push-pin fasteners and take off the cover above the grille.
  3. Under the cover, release two twist-lock fasteners (turn 90 degrees) securing the top of the grille.
  4. Release the clips in the fenders near the headlights (use a flat screwdriver to pry them) and remove the grille.
  5. Remove the cover above the bumper (held by clips, pull toward you).
  6. Now, unscrew five bolts and two nuts securing the front bumper.
  7. Near the wheel arches, remove one bolt on each side that secures the bumper to the brackets.
  8. With an assistant, pull the bumper forward to remove it.

Chevrolet Silverado I Front Bumper Mounting Locations

Chevrolet Silverado I Front Bumper Mounting Diagram

How to Remove the Rear Bumper

⇒Useful tips on how to remove the bumper and not break anything.⇐

  1. Get under the vehicle—all fasteners are located on the backside of the bumper.
  2. Disconnect the wiring harness for the license plate lights.
  3. Unscrew two bolts (inserted from bottom to top) and four bolts with nuts securing the bumper brackets to the frame rails.
  4. With an assistant, wiggle the bumper side to side and pull it backward to remove.

Chevrolet Silverado I rear bumper mounting locations

Chevrolet Silverado I Rear Bumper Mounting Diagram

Interesting Facts

  • The name "Silverado" comes from a California city known for its silver mines.
  • In 1999, the Silverado won the "North American Truck of the Year" award.
  • After the 2003 facelift, the StabiliTrak stability control system was introduced—a rarity for pickups at the time.
  • The SS version (2003–2006) featured a 6.0L V8 (345 HP) and sporty bodywork but was not mass-produced.

 

Pros and Cons

Pros:

  • Reliability – The LS-series engines (5.3L, 6.0L) are known for their durability.
  • Off-road capability – 4WD versions handled rough terrain well.
  • Ease of repair – Simple design and readily available parts.
  • Comfort – Spacious cabin and smooth suspension (for a pickup).
  • Towing capacity – Up to 4.5–5.5 tons in HD versions.

Cons:

  • Fuel consumption – Even the 5.3L V8 could burn 15–18 L/100 km in the city.
  • Interior materials – Cheap plastic prone to scratches and squeaks.
  • Rust issues – Vulnerable areas: rocker panels and fenders.
  • Electrical problems – Sensors and wiring sometimes failed.
  • Outdated 4-speed automatic – Struggled under heavy loads.

 

Conclusion

The Chevrolet Silverado I is a classic American pickup: powerful, simple, and rugged. It excels at work and off-roading but lacks fuel efficiency or a refined interior. Despite its age, many units are still on the road—a testament to its reliability.