2009 Cadillac CTS-V Wheel Interchange

2009 Cadillac CTS-V Wheel Fitment Guide | wheelinterchange.com

Known OEM Fitment For 2009 Cadillac CTS-V

The following factory measurements are what we have on record for the 2009 Cadillac CTS-V. Values may vary by axle or package. If a value you need is not listed, use the on-page calculator and verify with OEM sources like the owner manual, the driver door jamb label, and a GM parts catalog or dealer.

Notes:

• Some vehicles use different front and rear wheel widths and offsets. If your CTS-V has a staggered setup, confirm both axles before ordering.
• Tire load index and speed rating are not listed here. Match or exceed the ratings on your door jamb label.

How To Use The Wheel Interchange Calculator

The calculator lets you compare a donor wheel and tire to your 2009 Cadillac CTS-V and also test custom sizes. It shows inner and outer clearance changes, poke, and overall tire diameter difference.

• Select Installed on and choose Cadillac CTS-V 2009 so the tool uses your OEM baseline.
• Enter Wheels from for the donor vehicle you are considering. This helps quickly spot bolt pattern and offset differences.
• Use Custom wheel size to try a new rim diameter, width, and offset. The tool updates inner clearance and outer poke instantly.
• Use Custom tire size to set section width and aspect ratio. When you change rim diameter, the calculator shows the new overall tire diameter so you can keep speedometer error small.
• Review the inner clearance result. A loss in inner clearance risks rubbing on struts, liners, or control arms.
• Review the outer poke result. Excess poke can contact fenders or liners under compression and steering.
• Keep overall tire diameter change small. Many owners aim for about plus or minus 3 percent from stock. Confirm against OEM guidance.
• Print or save the comparison to discuss with your tire shop and to verify brake caliper and spoke clearance before purchase.

Fitment Checklist Before You Buy

• Bolt pattern: 5x120. Do not install 5x120.65 or 5x4.75 patterns. They are not the same.
• Center bore: 67.0 mm hub is listed. For aftermarket wheels with a larger bore, use hub-centric rings that reduce to 67.0 mm. Do not use rings to enlarge a smaller bore.
• Offset and width: Use the calculator to check inner clearance and outer poke against your baseline. Even a few millimeters can be the difference between clear and rub.
• Brake clearance: High performance brake packages need adequate barrel and spoke clearance. Ask the wheel seller for a brake clearance template and test it inside the wheel.
• Suspension and fender clearance: Turn lock to lock and compress the suspension to check potential contact points.
• Load rating: Each wheel and tire must meet or exceed the CTS-V axle load. Check manufacturer specifications.
• TPMS: Frequency and relearn procedures vary by year and sensor supplier. Reuse compatible sensors or purchase sensors that match your OEM part number. Perform a relearn after installation.
• Lug nuts: Thread is M14 x 1.5. Seat type must match the wheel design, commonly conical for aftermarket. Never mix seat types.
• Spacers: If spacers are required to clear brakes or struts, use hub-centric spacers that maintain a 67.0 mm hub interface and install extended studs or appropriate hardware as needed. Verify thread engagement.
• Speedometer change: Keep overall tire diameter change small to limit speedometer error and transmission shift impacts. Verify with the calculator.

Plus Sizing And Common Upgrades

Plus sizing can improve stance and response if done carefully. Use the calculator to visualize the impact before you buy.

• Wider wheels: As width increases, a lower offset is often needed to preserve inner clearance. Check both inner and outer changes in the calculator.
• Larger diameter wheels: When increasing rim diameter, reduce tire aspect ratio so overall tire diameter stays near stock. The calculator will show the difference.
• Square vs staggered: A square setup simplifies tire rotation. A staggered setup may improve rear traction but limits rotation and requires checking both axles for clearance.
• Track use: Prioritize brake clearance, heat-rated tires, and sufficient inner clearance under high load. Confirm with templates and physical test fits.
• Winter sets: Narrower tires can improve winter traction. Maintain correct load rating, bolt pattern, center bore, and offset that keeps inner and outer clearance safe.

If your OEM specs differ by axle or package and are not fully listed above, verify on your vehicle and with OEM sources, then enter those exact values as your baseline in the calculator for accurate comparisons.

Installation Tips

• Test fit first. Spin the wheel by hand to confirm caliper and suspension clearance before mounting tires.
• Clean the hub. Remove rust and debris so the wheel seats fully on the 67.0 mm hub. A wire brush and brake cleaner work well.
• Hand start all lug nuts on the M14 x 1.5 studs. Do not cross-thread.
• Tighten in a star pattern. Final torque should follow the factory service manual specification for your 2009 Cadillac CTS-V. Do not rely on impact guns for final torque.
• Re-torque after 50 to 100 miles of driving.
• TPMS relearn. After sensor installation, follow the GM relearn procedure or have a shop perform it with a TPMS tool.
• Alignment check. Any significant change in wheel width or offset should be followed by a professional alignment.

Tools And Helpful Supplies

• 1/2 inch drive torque wrench
• Thin wall lug nut socket set
• Jack stands rated for your vehicle
• Digital caliper for measuring hub and stud lengths

FAQs

• Do I have to match 5x120 exactly

  Yes. The CTS-V requires 5x120. Patterns like 5x120.7 or 5x4.75 will not center or seat correctly and are unsafe.

• What center bore do I need

  The listed hub is 67.0 mm. Wheels with a larger bore can be used with hub-centric rings that reduce to 67.0 mm. Wheels with a smaller bore will not fit.

• Will a different offset clear my brakes and fenders

  Offset changes affect both inner and outer clearance. Use the calculator to see the change from your OEM baseline, then physically test fit to confirm caliper and fender clearance.

• Can I reuse my OEM lug nuts

  Only if the seat type and shank match the new wheel. Many aftermarket wheels require conical seat nuts. The thread remains M14 x 1.5.

• Do I need new TPMS sensors

  If reusing your OEM sensors, confirm stem type and condition. If buying new, match the sensor specification to your 2009 Cadillac CTS-V by OEM part number. Perform a relearn after installation.

• How much tire diameter change is acceptable

  Keep overall diameter close to stock to limit speedometer error and avoid rubbing. Many aim for about plus or minus 3 percent. Verify results in the calculator and against OEM guidance.

• Are spacers safe

  Quality hub-centric spacers that maintain a 67.0 mm hub and provide proper thread engagement can be used when needed. Verify wheel stud or bolt engagement and re-torque regularly.

• What torque should I use on the lug nuts

  Torque values depend on the vehicle and hardware. Refer to the 2009 Cadillac CTS-V service manual or an OEM service database for the correct specification.