2018 Chevrolet Traverse Wheel Interchange

2018 Chevrolet Traverse Wheel Fitment And Interchange Guide

Known OEM Fitment For 2018 Chevrolet Traverse

The data points below come from available OEM references for this model year. Trims and option packages can vary. Always verify against your tire placard, owner’s manual, or GM service information before purchasing.

Notes:

• Multiple factory wheel and tire sizes may have been offered for the 2018 Traverse. The 18 x 7.5 ET50 wheel and the 255/55R20 tire listed above indicate there were different packages. Check your door-jamb tire placard for the exact size your vehicle shipped with.
• If your vehicle’s size differs from the examples, enter your exact specs into the calculator on wheelinterchange.com to compare options safely.

How To Use The Wheel Interchange Calculator

The on-page calculator lets you test donor wheels and custom sizes against your 2018 Chevrolet Traverse to estimate clearance, poke, and speedometer change.

• Step 1. In Wheels from (donor vehicle), enter the wheel and tire you want to test. If you are evaluating a bare wheel, set a custom tire that reasonably matches the intended overall diameter.
• Step 2. In Installed on (your vehicle), enter your current Traverse specs. If you are stock, use the values from your tire placard. You can also select the known data above, then adjust to match your trim if needed.
• Step 3. Use Custom wheel size to change rim diameter, width, and offset. The calculator updates tire diameter when rim diameter changes so you can maintain the overall diameter.
• Step 4. Use Custom tire size to adjust section width and aspect ratio, and watch inner clearance, outer poke, ride height change, and speedometer error.
• Step 5. Confirm brake caliper and suspension clearance visually on the vehicle. Calculator results are estimates and do not replace a physical test-fit.

Fitment Checklist Before You Buy

• Bolt pattern: Confirm the donor wheel is 5x132.7.
• Center bore: OEM hub is 74.5 mm. If the wheel bore is larger, plan for hub-centric rings sized to 74.5 mm. If it is smaller, the wheel will not seat.
• Thread size: Lugs must be M14 x 1.5 and the seat profile must match the wheel. Do not mix conical, ball, or mag seats.
• Offset and backspacing: Compare against ET 50 mm and 5.72 in backspacing. Use the calculator to ensure inner clearance to struts, knuckles, and sway links, and to manage outer fender poke.
• Brake clearance: Verify spoke and barrel clearance over front and rear calipers. Some designs with the same offset still interfere.
• Tire overall diameter: Keep overall diameter near stock. A general guideline is within about 3 percent to limit ABS and speedometer impact. Use the calculator to check.
• Load rating: Wheel and tire load ratings must meet or exceed the Traverse’s GAWR and GVWR requirements for your trim.
• TPMS: Plan for compatible sensors and a relearn procedure after installation.
• Test-fit: Always perform a hand-rotation test on the hub before mounting tires or torquing lugs.

Plus Sizing And Common Upgrades

Many owners explore moving between factory-style 18 inch and 20 inch packages. Because 2018 Traverse trims may differ, verify your starting size on the tire placard, then use these guidelines:

• Plus one or plus two: When increasing rim diameter, choose a tire with a lower aspect ratio so the overall diameter stays close to stock. Enter options into the calculator and aim to keep overall diameter within about 3 percent.
• Width changes: If increasing wheel width, offset usually needs to decrease to maintain inner clearance. Use the calculator to see how changes affect inner and outer positions relative to the OEM ET 50 mm baseline.
• Ride and handling: Larger diameters with lower-profile tires generally sharpen steering but can reduce ride comfort and increase impact risk.
• Hub-centric fit: If using aftermarket wheels with a larger center bore, add rings to 74.5 mm for smoother highway performance.

Installation Tips

• Clean mounting faces on the hub and wheel so they are flat and free of corrosion.
• Confirm lug nut seat type matches the wheel. Using the wrong seat type can cause loosening or damage.
• Start all lug nuts by hand to prevent cross-threading on the M14 x 1.5 studs.
• Snug lugs in a star pattern, lower the vehicle, then torque to the factory specification from your owner’s manual or GM service information. Re-torque after 50 to 100 miles.
• Do not lubricate wheel studs unless the OEM procedure specifies it. Most GM procedures call for clean, dry threads.
• Perform a steering lock-to-lock check and a short road test to confirm no rubbing under compression or full turn.
• Schedule an alignment if you changed tire diameter, width, or offset.

Tools And Helpful Supplies

• Torque wrench 1/2 inch drive: Shop options
• M14 x 1.5 lug nuts, correct seat for your wheels: Shop options
• Hub-centric rings sized to 74.5 mm hub: Shop options
• GM-compatible TPMS service or relearn tools: Shop options

FAQs

• What is the 2018 Chevrolet Traverse bolt pattern?

  The known bolt pattern is 5x132.7. Confirm on your vehicle before ordering.

• What is the OEM center bore and thread size?

  Center bore is 74.5 mm. Wheel studs use M14 x 1.5 threads.

• What offset should I use with aftermarket wheels?

  The known OEM reference is ET 50 mm with 5.72 in backspacing on an 18 x 7.5 wheel. For changes in width or diameter, use the calculator to compare inner and outer positions to this baseline, then physically test-fit.

• Can I run 20 inch wheels on my 2018 Traverse?

  Some trims used 255/55R20 tires. If your vehicle did not, you can still explore 20 inch options by keeping overall tire diameter close to stock and verifying clearance with the calculator and a test-fit.

• Do I need hub-centric rings?

  If your aftermarket wheel has a larger center bore than 74.5 mm, use rings that adapt the wheel bore down to 74.5 mm. If the wheel bore is smaller than 74.5 mm, the wheel will not fit.

• What lug nuts should I buy?

  Lug nuts must be M14 x 1.5 and have the correct seat profile for your wheel. Match conical, ball, or mag seats exactly. Do not mix seat types.

• What is the correct torque spec?

  Torque specifications can vary. Use the value in your owner’s manual or GM service information for your trim. Re-torque after the first 50 to 100 miles.

• Will my TPMS sensors work with new wheels?

  Most OEM sensors can be transferred if the new wheels physically accept them, or you can use compatible replacements. A relearn procedure is usually required after installation.

Disclaimer: Wheel and tire changes affect vehicle dynamics and safety. Use the calculator on wheelinterchange.com for comparisons, verify measurements on the vehicle, and follow OEM procedures.