2003 Chevrolet Silverado 1500 Wheel Offset

Quick specs

Wheel size
7x16 · 8.5x20
Offset
ET31 · ET22
Backspacing
4.72 in · 5.12 in
Bolt pattern
6x139.7
Center bore
78.1 mm
Thread
M14 x 1.5
Tire size
Multiple — see configurations

OEM configurations

ConfigurationRimOffsetBackspacingTireBolt patternCenter boreThread
4.3 4WD · 4.3L, V6, Petrol7x16ET314.72 in245/75R166x139.778.1 mmM14 x 1.5
4.3 4WD · 4.3L, V6, Petrol7x16ET314.72 in265/75R166x139.778.1 mmM14 x 1.5
4.3 · 4.3L, V6, Petrol7x16ET314.72 in235/75R166x139.778.1 mmM14 x 1.5
4.3 · 4.3L, V6, Petrol7x16ET314.72 in255/70R166x139.778.1 mmM14 x 1.5
4.8 · 4.8L, V8, Petrol7x16ET314.72 in235/75R166x139.778.1 mmM14 x 1.5
4.8 · 4.8L, V8, Petrol7x16ET314.72 in255/70R166x139.778.1 mmM14 x 1.5
4.8 4WD · 4.8L, V8, Petrol7x16ET314.72 in245/75R166x139.778.1 mmM14 x 1.5
4.8 4WD · 4.8L, V8, Petrol7x16ET314.72 in265/75R166x139.778.1 mmM14 x 1.5
5.3 · 5.3L, V8, Petrol7x16ET314.72 in235/75R166x139.778.1 mmM14 x 1.5
5.3 · 5.3L, V8, Petrol7x16ET314.72 in255/70R166x139.778.1 mmM14 x 1.5
5.3 4WD · 5.3L, V8, Petrol7x16ET314.72 in245/75R166x139.778.1 mmM14 x 1.5
5.3 4WD · 5.3L, V8, Petrol7x16ET314.72 in265/75R166x139.778.1 mmM14 x 1.5
6.0 · V8, Petrol8.5x20ET225.12 in275/55R206x139.778.1 mmM14 x 1.5

Lug hardware

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  • M14x1.5 Lug Nuts Black with Spline Tuner, XL 2 inches Length Conical Aftermarket Wheel Nut, Compatible with Chevy GMC Ford Cadillac Lincoln SAAB Saturn Silverado 1500 Savana, Set of 24

    Catalog match for this vehicle. Confirm seat type and wheel style before buying.

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  • Wheel Accessories Parts Set of 24 Black Spiked Solid Metal Lug Nuts M14x1.5 Thread 4.4 Inch Tall Closed End Bulge Acorn Spike Lug Nut 1 Socket Key- Fit Chevy Silverado 1500 Ford F150 GMC Sierra 1500

    Catalog match for this vehicle. Confirm seat type and wheel style before buying.

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  • MIKKUPPA M14x1.5 Wheel Lug Nut - Replacement for Chevy Silverado 1500 2500, GMC, Ford, Ram, Aftermarket Wheel - 32pcs Black Closed End Lug Nuts with 1 Socket Key

    Catalog match for this vehicle. Confirm seat type and wheel style before buying.

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Real-World 2003 Chevrolet Silverado 1500 Wheel Setups

Observed aftermarket setups from documented Modified1 builds. These are individual build records — not OEM specifications and not clearance guarantees for every vehicle.

Common custom wheel sizes

Among builds in our database for this model year:

  • 18-inch — 1 documented build
  • 20-inch — 1 documented build

2 documented builds.

2003 Chevrolet Silverado 1500 custom wheel setup

18×? ET-12

Documented on a 2003 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires
295/65R18
Suspension
Leveling Kit
Compared with OEM

Compared with the 16×7 ET31 OEM configuration. Calculated geometry only — not fit confirmation.

  • Diameter +2" vs OEM
2003 Chevrolet Silverado 1500 custom wheel setup

20×12 ET-76

Documented on a 2003 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Compared with OEM

Compared with the 20×8.5 ET22 OEM configuration. Calculated geometry only — not fit confirmation.

  • Outer edge 142.4 mm farther toward fender (more outward poke)
  • Inner edge 53.6 mm farther from suspension (more inner clearance)
  • Width +3.5" vs OEM

More specs for the 2003 Chevrolet Silverado 1500

Each OEM row is a catalog configuration. Offset ranges are not collapsed when the database has exact setups. Documented aftermarket builds are observed setups only — not universal fit or clearance confirmation.