2020 Chevrolet Silverado 1500 Wheel Interchange

2020 Chevrolet Silverado 1500 Wheel Fitment Guide - wheelinterchange.com

Known OEM Fitment For 2020 Chevrolet Silverado 1500

The Silverado 1500 was offered in multiple wheel and tire packages for 2020. The values below are confirmed OEM examples, but they can vary by trim and option package. Always verify your specific truck using the driver door placard, the owner’s manual, your VIN, and the on-page calculator before purchasing wheels or tires.

If your trim or package is different or unknown, confirm OEM sizes by checking the tire and loading sticker on the driver door jamb and cross-referencing the VIN with an OEM parts catalog or dealership.

How To Use The Wheel Interchange Calculator

The calculator on this page lets you compare two setups and see how diameter, inner and outer clearance, and poke change. It is designed to help you avoid rubbing and safety issues before you buy.

• Choose Wheels from (donor vehicle) to input the wheel and tire you want to try. You can enter a known vehicle or use Custom wheel size and Custom tire size.
• Choose Installed on (your vehicle) and select 2020 Chevrolet Silverado 1500, then confirm or edit the baseline wheel and tire if your trim differs.
• Adjust Custom wheel size to test rim diameter, width, and offset changes. The tool shows how inner clearance to suspension and outer poke to the fender change.
• Adjust Custom tire size to explore section width and aspect ratio. When you change rim diameter, the calculator updates overall tire diameter so you can keep speedometer error in check.
• Review the comparison results. Ensure there is adequate inner clearance for control arms, knuckles, and liners, and that outer poke stays within fender and mud flap limits.
• Use the results as a pre-fit guide, then verify on the truck by measuring actual clearances before final purchase.

Fitment Checklist Before You Buy

• Bolt pattern: Your new wheels must be 6x139.7.
• Center bore: The truck hub is 78.1 mm. If the wheel’s center bore is larger, use hub-centric rings sized to 78.1 mm outer diameter. Do not force a smaller bore over the hub.
• Thread size and lug seat: Silverado 1500 uses M14 x 1.5 studs. Match lug nut seat type to the wheel’s seat (commonly conical for many aftermarket wheels, but verify). Do not mix seat types.
• Offset and backspacing: Use the calculator to compare to the OEM example 20 x 9.0 ET 28 with 5.6 in backspacing. Reducing offset increases outer poke and reduces inner clearance. Increasing offset does the opposite.
• Brake and suspension clearance: Confirm caliper, knuckle, and upper control arm clearance. Some wheel designs with thick spokes or small barrel drop centers may contact calipers even when diameter seems adequate.
• Load rating: Wheels and tires must meet or exceed the truck’s GAWR and intended payload or towing use.
• Speedometer and gearing: Keep overall tire diameter close to stock to minimize speedometer error and shifting changes. The calculator shows tire diameter differences.
• TPMS: Plan to transfer sensors or purchase compatible replacements. A relearn procedure is required after install.
• Spacers and adapters: Only if necessary, hub-centric, and properly sized for 78.1 mm hubs, with adequate stud engagement. Re-torque and inspect frequently. Local regulations may apply.
• Test fit when possible: Spin the front wheels lock-to-lock and compress suspension to check for liner or crash-bar contact before driving.

Plus Sizing And Common Upgrades

Owners often move between OEM-style 17, 18, and 20 inch packages, choose wider tires for a more planted stance, or select different offsets for a flush look. Because 2020 Silverado 1500 trims ship with different factory packages, treat the examples below as planning ideas and verify everything with the calculator and a physical test fit.

• Upsizing wheels: Moving to a larger rim generally requires a lower-profile tire to keep overall diameter similar. Use the calculator to keep total diameter close to your OEM package to protect ride quality and speedometer accuracy.
• Wider stance: A lower offset increases outer poke. Use the calculator to visualize fender coverage and to ensure inner clearance remains safe under suspension compression and steering.
• All-terrain tires: Wider section widths can aid traction and appearance but may contact liners or mud flaps at full lock. Compare inner and outer clearances, then verify on-vehicle.
• Leveling or lift kits: Suspension changes can allow larger diameters and widths, but bracket and liner geometry vary by kit. Confirm with the kit manufacturer and re-check with the calculator and measurements.

Installation Tips

• Prepare the hub: Clean rust and debris from the hub face so the wheel seats flush. Lightly brush corrosion and wipe clean.
• Hub-centric rings: If your wheels have a larger bore than 78.1 mm, install correctly sized rings before mounting.
• Lug nuts: Confirm M14 x 1.5 thread and the correct seat type for the wheel. Hand start all lugs to avoid cross-threading.
• Tightening pattern: Use a star pattern to snug lugs, lower the vehicle, then torque to the specification in your owner’s manual with a calibrated torque wrench.
• TPMS: Transfer or install new sensors and perform the GM relearn procedure. Verify pressures and sensor IDs.
• Re-torque and re-check: After 50 to 100 miles, re-torque lugs to spec and inspect for any rubbing or fastener loosening.

Tools And Helpful Supplies

• 1/2 inch drive torque wrench
• M14 x 1.5 lug nuts - verify seat type
• GM TPMS relearn tool
• Tire pressure gauge

FAQs

• Does any 6x139.7 wheel fit a 2020 Silverado 1500?

  No. You must also match center bore, load rating, offset/backspacing, brake clearance, and lug seat type. The Silverado’s hub is 78.1 mm and thread is M14 x 1.5. Always verify with the calculator and a test fit.

• What is the difference between offset and backspacing?

  Offset is the distance from the wheel’s centerline to the mounting pad, in millimeters. Backspacing is the distance from the mounting pad to the inner wheel lip, in inches. For example, an OEM Silverado wheel of 20 x 9.0 with ET 28 corresponds to about 5.6 in of backspacing.

• Do I need hub-centric rings on this truck?

  If your aftermarket wheel’s center bore is larger than 78.1 mm, use rings sized to 78.1 mm outer diameter and the wheel’s inner bore. If the wheel bore is exactly 78.1 mm, rings are not used. Never try to fit a smaller bore over the hub.

• Will my speedometer be off if I change tire sizes?

  It can be. The closer your new tire’s overall diameter is to your OEM setup, the closer your speedometer will read to actual speed. Use the calculator to compare total diameter, then verify with GPS after installation.

• Can I reuse my factory lug nuts on aftermarket wheels?

  Only if the thread and seat type match the new wheels. The truck uses M14 x 1.5 threads, but the seat type must match the wheel design. Many aftermarket wheels need conical-seat lug nuts; verify with the wheel manufacturer.

• Do I need spacers to fit wider tires?

  Not necessarily. Use the calculator to see if your chosen width and offset provide inner and outer clearance. If spacers are required, they must be hub-centric for a 78.1 mm hub and provide proper stud engagement. Re-torque and inspect regularly.

• What torque should I use on the lug nuts?

  Follow the torque specification in the 2020 Chevrolet Silverado 1500 owner’s manual or OEM service information. Use a calibrated torque wrench and a star pattern, then re-torque after initial miles.

• Will 20 inch wheels fit if my truck came with 17s?

  Many trims were offered with different OEM wheel diameters. Diameter alone does not guarantee fit. Confirm brake clearance, offset, and tire overall diameter using the calculator, then verify on-vehicle.

• Do I need new TPMS sensors for a second wheel set?

  You can reuse OEM sensors or purchase compatible replacements. After installation you must perform the GM relearn procedure so the truck recognizes the sensors.