2008 Chevrolet Impala Wheel Interchange

2008 Chevrolet Impala Wheel Fitment and Interchange Guide

Known OEM Fitment For 2008 Chevrolet Impala

The following factory specifications are what we have on file for the 2008 Chevrolet Impala. This list may be partial and some values can vary by trim or package. Always confirm your exact equipment with the tire and loading label on the driver door jamb, the owner’s manual, or by contacting a Chevrolet dealer with your VIN. Use the on-page calculator to validate changes against your verified OEM size.

Notes: The wheel and tire data above likely represent different OEM trims. Many 2008 Impalas were equipped with 16 inch tires, while some trims used larger factory wheels. Verify your original size on the vehicle before using the calculator to compare changes.

How To Use The Wheel Interchange Calculator

The calculator on this page lets you compare a donor setup against your Impala and also test custom wheel and tire sizes. Follow these steps:

• Select Wheels from (donor vehicle) if you are comparing take-off wheels from another car. Then set Installed on (your vehicle) to 2008 Chevrolet Impala.
• If you are not using a donor vehicle, set a Custom wheel size. Enter rim diameter, width, and offset. You can also set a Custom tire size by section width and aspect ratio.
• When you change rim diameter, the calculator updates tire diameter in the comparison so you can see the effect on overall height, clearance, and speedometer.
• Review inner clearance to struts and suspension and outer poke toward the fender. The tool shows how offset and width changes move the wheel inboard or outboard.
• Compare tire overall diameter against your verified OEM size. Aim to stay close to stock to preserve ABS, traction control, and speedometer function.
• Use the backspacing and offset outputs to judge brake caliper and knuckle clearance. Always follow up with a physical test fit before driving.

Fitment Checklist Before You Buy

Use this checklist to avoid costly returns and safety issues. Confirm each item on your actual vehicle and with the calculator.

• Bolt pattern: Must be 5x115. Do not use 5x114.3 unless an OEM source explicitly approves it for your vehicle. Mismatch can cause vibration and stud stress.
• Center bore: Vehicle hub bore is 70.3 mm. Aftermarket wheels often have a larger bore and require hub-centric rings sized to your wheel bore and 70.3 mm at the hub.
• Thread size and lug seat: M12 x 1.5 threads. Match the lug nut seat style to the wheel design, typically conical or mag seat, as specified by the wheel maker.
• Offset and backspacing: Start from your verified OEM spec. Use the calculator to see how a new offset affects inner clearance and outer poke. Ensure brake, strut, and fender clearance through full steering lock and suspension travel.
• Brake clearance: Some wheel designs have thicker barrels or spokes. Always test fit to check caliper clearance, including wheel weights.
• Load rating: Wheel and tire load ratings must meet or exceed the Impala’s axle loads.
• Tire overall diameter: Keep overall diameter close to stock. Many installers use a target within about 3 percent as a general guideline. Validate with the calculator and speedometer error readout.
• TPMS: 2008 models use tire pressure monitoring. Verify sensor compatibility, seals, and relearn procedure before installation.
• Stud engagement: Ensure full nut engagement on M12 studs. Do not use spacers unless properly engineered and legally permitted, and only after verifying remaining stud thread engagement.

Plus Sizing And Common Upgrades

Several OEM configurations existed for the 2008 Impala. If your door label shows a 16 inch tire such as 225/60R16, a typical plus-size path for many sedans is plus-one to a 17 inch tire with a slightly lower aspect ratio, or plus-two to an 18 inch tire. Examples for calculator testing only:

• From 225/60R16, try 225/55R17 in the calculator to compare diameter and clearance. This is an example, not a confirmed fitment.
• Also try 235/50R18 as another example in the tool. Verify wheel width and offset carefully for inner and outer clearance.

Do not purchase based on examples. Always confirm your OEM size from the vehicle, then use the calculator to check diameter change, inner clearance to the strut and knuckle, and outer position relative to the fender. Keep offsets near your verified OEM value, and adjust width and offset together to maintain safe clearances. Finish with a physical test fit.

Installation Tips

Prepare the vehicle on level ground with the parking brake set. Use proper jacking points and support the car on rated jack stands. Clean the hub face and the wheel mounting pad until bare metal for accurate seating. If using hub-centric rings, seat them fully on the wheel or hub per the ring design. Do not lubricate lug nut threads or seats unless the OEM service information specifies it. Install wheels by hand and snug the M12 x 1.5 lug nuts in a star pattern. Lower the vehicle and torque the lug nuts to the factory specification from the owner’s manual or service manual using a calibrated torque wrench. Re-torque after 50 to 100 miles of driving. Relearn or program TPMS sensors and verify no leaks at the valve stems and sensor seals. Check for rubbing at full steering lock in both directions and over bumps before regular driving.

Tools And Helpful Supplies

• 1/2 inch drive torque wrench: Shop options
• M12 x 1.5 lug nuts matched to your wheel seat style: Shop options
• TPMS relearn or programming tool for GM vehicles: Shop options
• Hub-centric rings sized to 70.3 mm vehicle hub: Shop options
• Floor jack and jack stands, wire brush for hub cleaning, brake cleaner, tire pressure gauge, and chalk for wheel test-fit marking.

FAQs

What is the bolt pattern on a 2008 Chevrolet Impala?
It is 5x115 based on the information above. Always confirm on your specific car before buying wheels.

What center bore do I need for aftermarket wheels?
The vehicle hub bore is 70.3 mm. If your wheel bore is larger, use hub-centric rings that adapt the wheel bore to 70.3 mm.

What lug nut thread size does it use?
M12 x 1.5. Match the seat type to the wheel design and torque to the OEM specification from your manual.

Will 18 inch wheels fit my 2008 Impala?
Some trims used larger factory wheels. Fitment varies by brake package, wheel width, and offset. Verify your OEM size from the door label, then use the calculator to compare 18 inch options and complete a physical test fit.

What offset should I choose for aftermarket wheels?
We have an OEM reference of ET 52 mm for a 7.0 inch wheel. Stay close to your verified OEM offset and use the calculator to see how changes affect inner and outer clearance. Always test fit.

Can I run 5x114.3 wheels on a 5x115 car?
Do not mix bolt patterns unless an OEM source expressly approves it for your vehicle and hardware. It risks vibration and fastener stress.

Do I need new TPMS sensors?
If reusing your sensors, ensure they are compatible with the new wheels and that seals are replaced as needed. If buying new sensors, match them to your vehicle and complete the relearn procedure per the owner’s manual or with a TPMS tool.

How close should my new tire diameter be to stock?
Use the calculator to compare overall diameter. Many installers target a small variance to maintain speedometer accuracy and proper ABS and stability control operation. Confirm with a road test and a GPS speed check.

Where can I find my factory wheel and tire size?
Check the tire and loading label on the driver door jamb, the owner’s manual, or contact a Chevrolet dealer with your VIN. Use that verified size as the baseline in the calculator.