tirewheelguide

2006 GMC Sierra 1500 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 6x139.7 on every 2006 trim.

Tires for the 2006 GMC Sierra 1500

Sizes most trims come with first. Open your trim below for its exact size.

  1. 245/75R16 Best-rated standard on 3 trims · optional on 3
    Check price on Amazon · 245/75R16
  2. 245/70R17 Best-rated standard on 2 trims · optional on 6
    Check price on Amazon · 245/70R17
  3. 255/70R16 Best-rated standard on 2 trims · optional on 1
    Check price on Amazon · 255/70R16

Also listed: 235/75R16 265/70R17 265/65R18 255/70R17 265/75R16 265/65R17

TireWheelGuide may earn a commission from purchases made through these links.

Trims sold in 2006
8
Generation
GMT800

8 trims sold in 2006

Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

GMC Sierra 1500 GMT800

1999–2006 8 trims
Sierra 1500 4.3i 195 hp · 4.3L LU3 V6 235/75R16 106S 5 fitments
Generation
GMT800 · 1999–2006
Power
195 hp
Engine
4.3L LU3 V6, Petrol
Center bore
78.1 mm
Bolt pattern
6x139.7
Thread
M14 x 1.5
Check price on Amazon · 235/75R16 Wheels 16x6.5 ET25 · 6x139.7 · 78.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
235/75R16 106SRim 16x6.5 ET25 6x139.735 psi
255/70R16 109SRim 16x7 ET31 6x139.735 psi
245/75R16 109SRim 16x7 ET31 6x139.735 psi
245/70R17 108SRim 17x7 ET31 6x139.735 psi
255/70R17 110SRim 17x7.5 ET31 6x139.735 psi

How to read 106S: 106 is the load index (up to 2,094 lb / 950 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET25 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Sierra 1500 4.3i 4WD +1 variant 195 hp · 4.3L LU3 V6 245/75R16 108S 5 fitments

Same tires and wheels on: 4.8i 4WD

Generation
GMT800 · 1999–2006
Power
195 hp
Engine
4.3L LU3 V6, Petrol
Center bore
78.1 mm
Bolt pattern
6x139.7
Thread
M14 x 1.5
Check price on Amazon · 245/75R16 Wheels 16x6.5 ET25 · 6x139.7 · 78.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/75R16 108SRim 16x6.5 ET25 6x139.735 psi
265/75R16 109SRim 16x7 ET31 6x139.735 psi
245/70R17 108SRim 17x7 ET31 6x139.735 psi
265/70R17 113SRim 17x7.5 ET31 6x139.735 psi
265/65R18 112TRim 18x7.5 ET30 6x139.735 psi

How to read 108S: 108 is the load index (up to 2,205 lb / 1,000 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET25 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Sierra 1500 4.8i 286 hp · 4.8L LR4 V8 255/70R16 109S 5 fitments
Generation
GMT800 · 1999–2006
Power
286 hp
Engine
4.8L LR4 V8, Petrol
Center bore
78.1 mm
Bolt pattern
6x139.7
Thread
M14 x 1.5
Check price on Amazon · 255/70R16 Wheels 16x7 ET31 · 6x139.7 · 78.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
255/70R16 109SRim 16x7 ET31 6x139.735 psi
245/75R16 109SRim 16x7 ET31 6x139.735 psi
245/70R17 108SRim 17x7 ET31 6x139.735 psi
255/70R17 110SRim 17x7 ET31 6x139.735 psi
265/65R17 112SRim 17x7.5 ET31 6x139.735 psi

How to read 109S: 109 is the load index (up to 2,271 lb / 1,030 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET31 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Sierra 1500 5.3i 310 hp · 5.3L L33 V8 245/70R17 108S 5 fitments
Generation
GMT800 · 1999–2006
Power
310 hp
Engine
5.3L L33 V8, Petrol
Center bore
78.1 mm
Bolt pattern
6x139.7
Thread
M14 x 1.5
Check price on Amazon · 245/70R17 Wheels 17x7 ET31 · 6x139.7 · 78.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/70R17 108SRim 17x7 ET31 6x139.735 psi
265/70R17 113SRim 17x7.5 ET31 6x139.735 psi
255/70R17 110SRim 17x7.5 ET31 6x139.735 psi
265/65R18 112TRim 18x7.5 ET30 6x139.735 psi
265/65R18 112TRim 18x8 ET25 6x139.735 psi

How to read 108S: 108 is the load index (up to 2,205 lb / 1,000 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET31 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Sierra 1500 5.3i 295 hp · 5.3L LM7 V8 255/70R16 109S 5 fitments
Generation
GMT800 · 1999–2006
Power
295 hp
Engine
5.3L LM7 V8, Petrol
Center bore
78.1 mm
Bolt pattern
6x139.7
Thread
M14 x 1.5
Check price on Amazon · 255/70R16 Wheels 16x7 ET31 · 6x139.7 · 78.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
255/70R16 109SRim 16x7 ET31 6x139.735 psi
245/75R16 109SRim 16x7 ET31 6x139.735 psi
245/70R17 108SRim 17x7 ET31 6x139.735 psi
255/70R17 110SRim 17x7.5 ET31 6x139.735 psi
265/65R17 112SRim 17x7.5 ET31 6x139.735 psi

How to read 109S: 109 is the load index (up to 2,271 lb / 1,030 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET31 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Sierra 1500 5.3i AWD 295 hp · 5.3L LM7 V8 245/75R16 109S 5 fitments
Generation
GMT800 · 1999–2006
Power
295 hp
Engine
5.3L LM7 V8, Petrol
Center bore
78.1 mm
Bolt pattern
6x139.7
Thread
M14 x 1.5
Check price on Amazon · 245/75R16 Wheels 16x6.5 ET25 · 6x139.7 · 78.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/75R16 109SRim 16x6.5 ET25 6x139.735 psi
265/75R16 109SRim 16x7 ET31 6x139.735 psi
245/70R17 108SRim 17x7 ET31 6x139.735 psi
265/70R17 113SRim 17x7.5 ET31 6x139.735 psi
265/65R18 112TRim 18x8 ET25 6x139.735 psi

How to read 109S: 109 is the load index (up to 2,271 lb / 1,030 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET25 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Sierra 1500 6.0i 345 hp · 6.0L LQ9 V8 245/70R17 108S 4 fitments
Generation
GMT800 · 1999–2006
Power
345 hp
Engine
6.0L LQ9 V8, Petrol
Center bore
78.1 mm
Bolt pattern
6x139.7
Thread
M14 x 1.5
Check price on Amazon · 245/70R17 Wheels 17x7 ET31 · 6x139.7 · 78.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/70R17 108SRim 17x7 ET31 6x139.735 psi
265/70R17 113SRim 17x7.5 ET31 6x139.735 psi
265/65R18 112TRim 18x7.5 ET30 6x139.735 psi
265/65R18 112TRim 18x8 ET25 6x139.735 psi

How to read 108S: 108 is the load index (up to 2,205 lb / 1,000 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET31 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

What these columns mean
Rim size
Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD)
Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore
Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure
Recommended cold inflation pressure for that axle, in psi.
Thread size
Lug bolt or nut thread — needed when buying aftermarket fasteners.
Trims sold in 2006
8
Generation
GMT800
Other years
All years (1988–2026)

Considering a different size?

Compare your current tire size with the one you want: diameter change, ground clearance and speedometer error.

Open the size calculator

Guides worth reading first

All articles
Basics

How to read a tire sidewall

Reading a tire sidewall is easy. Find out what the size, load index, speed rating and date code mean.

Continue reading
Guide

Everything you need to know about tire tread depth

Tire tread depth is an important factor in keeping your vehicle safe — how to measure it and when to replace.

Continue reading
Gear

Best supercapacitor jump starter review

We tested seven supercapacitor jump starters to find the ones worth buying.

Continue reading