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2003 Chevrolet SSR Indy 500 Pace Vehicle Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Chevrolet SSR Indy 500 Pace Vehicle wheels? This page gives the 2003 Chevrolet SSR Indy 500 Pace Vehicle bolt pattern (6x127), centre bore, factory rim size and the offset range for aftermarket and forged Chevrolet SSR Indy 500 Pace Vehicle rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2003 Chevrolet SSR Indy 500 Pace Vehicle uses a 6x127 bolt pattern with a 78.1 mm centre bore and M12x1.5 lug nuts. Factory wheels: F: 19x8.0J R: 20x10.0J. For aftermarket wheels, 20x9.0J ET35 front / 22x11.0J ET35 rear sits flush and 21x9.5J ET30 front / 22x11.5J ET30 rear is the most aggressive fit.
Forged wheels for the 2003 Chevrolet SSR Indy 500 Pace Vehicle — drilled 6x127 with a 78.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
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Chevrolet SSR Indy 500 Pace Vehicle (2003): 6x127 bolt pattern, 78.1mm center bore. Factory wheels: F: 19x8.0J R: 20x10.0J. Reference fitment ranges.
Bolt Pattern6x127
Wheel Bolt/NutM12x1.5 Nut
Center Bore78.1mm
Wheel Load Rating1000–1400 kg/wheel (Pickup / Light Truck segment reference)
Year2003
CategoryTruck
Data check: published sources disagree on part of this vehicle's hub data, and we are reviewing it. Measure your hub or ask us before ordering. How we verify
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | F: 19x8.0J R: 20x10.0J |
| Flush Fitment | F 20x9.0J ET35 / R 22x11.0J ET35 |
| Maximum Aggressive | F 21x9.5J ET30 / R 22x11.5J ET30 |
Forged Wheel Designs for the Chevrolet SSR Indy 500 Pace Vehicle
Every design below is forged to order, so it can be machined to the Chevrolet SSR Indy 500 Pace Vehicle's 6x127 bolt pattern and 78.1 mm center bore, with the width and offset calculated for your setup.
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How to Read Wheel Offset & Measurements
Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.
ANKUSI Engineering Expert Advice
Trucks live and die on unsprung weight and load capacity — every pound added at the wheel is a pound the suspension has to control over every bump, fully loaded or not. Forging the wheel instead of casting it lets us hold the factory load rating while cutting rotational mass, which pays off directly in ride quality and steering response on a vehicle that spends real time towing or hauling.
The Chevrolet SSR Indy 500 Pace Vehicle runs a 6x127 bolt pattern, 78.1mm center bore, and a F: 19x8.0J wheel from the factory. Our Flush Fitment reference is F 20x9.0J ET35 / R 22x11.0J ET35, which tucks the tire under the fender lip on a stock-height Chevrolet SSR Indy 500 Pace Vehicle. Our Maximum Aggressive reference is F 21x9.5J ET30 / R 22x11.5J ET30 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Chevrolet SSR Indy 500 Pace Vehicle OE Wheel Specs
The 2003 Chevrolet SSR Indy 500 Pace Vehicle (Truck) uses a 6x127 bolt pattern with a 78.1mm center bore. Factory wheels are F: 19x8.0J R: 20x10.0J.
Why the factory spec works for most owners:
- Keeps the factory ride quality and noise levels intact
- A common fitment for this class, so replacement tires are easy to source
- Preserves clearance around the OE brakes and suspension geometry
- Delivers predictable, easy-to-live-with handling for daily use
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Chevrolet SSR Indy 500 Pace Vehicle (2003) we drill the 6x127 pattern and cut the centre bore to 78.1mm on our own CNC line, so the wheel hub-centres on the car with no spacer rings, in whatever diameter, width and offset you specify.
Converting these ET figures to backspacing? Use the wheel offset and backspacing calculator.
The figures on this page are part of our open wheel fitment dataset — 10,093 vehicles, free to download, CC BY 4.0.
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: F 19x8.0J ET46 → ~6.31″ F backspacing, R 20x10.0J ET46 → ~7.31″ R backspacing
- Flush: F 20x9.0J ET35 → ~6.38″ F backspacing, R 22x11.0J ET35 → ~7.38″ R backspacing
- Max: F 21x9.5J ET30 → ~6.43″ F backspacing, R 22x11.5J ET30 → ~7.43″ R backspacing
Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or looking for your exact Chevrolet spec, or want a wheel built to a custom offset for your Chevrolet SSR Indy 500 Pace Vehicle? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.
Vehicles With the Same Hub as the Chevrolet SSR Indy 500 Pace Vehicle (6x127, 78.1 mm Bore)
In our database, 10 other vehicle entries from 5 makes use exactly the same 6x127 bolt pattern and 78.1 mm center bore. Factory wheels from these cars bolt on and center on the hub without rings; offset and width still have to be checked.
6x127 is used by 0.2% of the vehicle pages in our English fitment guide (12 of 6,503); 91.7% of those also use a 78.1 mm center bore.
Hub-Centric Rings for a 78.1 mm Center Bore
A wheel with a center bore larger than 78.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 84.1 mm | 84.1 → 78.1 mm |
| 93.1 mm | 93.1 → 78.1 mm |
| 100.1 mm | 100.1 → 78.1 mm |
| 106.1 mm | 106.1 → 78.1 mm |
ANKUSI forged wheels are bored to exactly 78.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Chevrolet SSR Indy 500 Pace Vehicle use?
The 2003 Chevrolet SSR Indy 500 Pace Vehicle uses a 6x127 bolt pattern.
How many lug bolts does the Chevrolet SSR Indy 500 Pace Vehicle use?
The Chevrolet SSR Indy 500 Pace Vehicle uses a 6-lug bolt pattern (6x127), so you need a 6-lug forged wheel to bolt straight on.
What is the center bore size on the Chevrolet SSR Indy 500 Pace Vehicle?
The Chevrolet SSR Indy 500 Pace Vehicle's center bore is 78.1mm. If an aftermarket wheel has a larger center bore than this, hub-centric rings are recommended so the wheel centers on the hub itself rather than relying on the lug bolts alone.
What size are the factory (stock) wheels on the Chevrolet SSR Indy 500 Pace Vehicle?
Factory wheels on the Chevrolet SSR Indy 500 Pace Vehicle are F: 19x8.0J R: 20x10.0J.
What is the biggest wheel size I can fit on my Chevrolet SSR Indy 500 Pace Vehicle without rubbing?
The most aggressive fitment we recommend without fender work is F 21x9.5J ET30 / R 22x11.5J ET30. Going beyond this typically causes rubbing under compression unless you roll the fenders or add camber correction.
What does a flush wheel fitment look like on the Chevrolet SSR Indy 500 Pace Vehicle?
For a flush look with minimal to no rubbing, we recommend F 20x9.0J ET35 / R 22x11.0J ET35 as a starting point on a stock or mildly lowered Chevrolet SSR Indy 500 Pace Vehicle.
Do I need wheel spacers for my Chevrolet SSR Indy 500 Pace Vehicle?
No. ANKUSI forges each wheel to your exact target offset, including the flush or max specs above, so you get the correct fitment without stacking spacers. Spacers are typically only used to push out an existing OE-offset wheel without replacing it, which isn't necessary when you're ordering a custom-offset forged wheel.
How do I calculate wheel backspacing for my Chevrolet SSR Indy 500 Pace Vehicle?
Backspacing (in inches) = wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance). For example, the flush spec above works out to roughly 6.38" backspacing up front and 7.38" in the rear.
What's the difference between wheel offset and backspacing?
Offset is the distance in millimeters from the wheel's true centerline to its mounting face (positive offset pulls the wheel in, negative pushes it out). Backspacing is the distance in inches from the mounting face to the back edge of the wheel barrel. They describe the same fitment from two different reference points, which is why ANKUSI lists both above — some shops and tuning guides quote offset, others quote backspacing.
Can I run staggered wheels (different sizes front and rear) on my Chevrolet SSR Indy 500 Pace Vehicle?
Yes — the Chevrolet SSR Indy 500 Pace Vehicle's factory and our recommended flush/max fitments already use staggered sizing (different width front and rear), and ANKUSI can forge matching staggered sets to your target offsets.
Wheel Installation Reference: Torque, Thread & TPMS
Thread & Fastener: M12x1.5, conical-seat lug nut.
Factory Torque Spec: 136 Nm (100 ft-lb). Covers most Chevrolet passenger cars and crossovers on M12 studs.
TPMS: Vehicles built before the 2008 model year were not federally required to carry factory TPMS in the US, though many manufacturers adopted it earlier; verify whether your specific build has TPMS before ordering sensor-compatible wheels.
Tire Pressure: Always set tire pressure to the value on your vehicle's tire placard (driver's doorjamb or glovebox), not the max PSI printed on the tire sidewall — this is trim- and tire-size-specific and stays the same reference point when you switch to a different wheel and tire combination.
Reference data compiled from published OEM service specifications and cross-checked against independent repair sources; always confirm against your owner's manual or door-jamb placard before installation.
Sources and Last Update
Data checked against: avtoreference.com.
This record is part of the open ANKUSI Wheel Fitment Dataset (DOI 10.5281/zenodo.23241521, CC BY 4.0).
Other cars on the same factory size: 19x8 wheels · 19 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.
Bolt pattern and center bore on this page come from published fitment references and are still awaiting a second independent check. Last reviewed 2026-09-18. Spotted an error? Email info@ankusi.com and we will verify and correct it.