Before beginning, ensure you have all required equipment:
Park on level, solid ground to prevent vehicle movement during the process. Engage the parking brake and place wheel chocks on the opposite end of the vehicle from where you're working (e.g., if changing rear tyres, chock the front wheels).
Use the lug wrench to break the initial tension on the lug nuts before lifting the vehicle. Turn counterclockwise to loosen, but don't remove them completely yet. This is easier to do while the wheel is still on the ground.
Locate the proper jacking point for your vehicle (consult your owner's manual). These reinforced areas are designed to support the vehicle's weight. Incorrect placement can damage components or cause the vehicle to slip.
Raise the vehicle until the wheel is approximately 6 inches off the ground. Place jack stands under appropriate support points as a safety measure, then slightly lower the vehicle onto the stands.
Fully remove the lug nuts, keeping them in a secure location. Pull the wheel straight off the hub, using a gentle rocking motion if necessary. Set the old wheel aside.
Line up the new wheel with the wheel hub, ensuring the valve stem faces outward. Push it onto the hub until it sits flush. Hand-tighten the lug nuts in a star or crisscross pattern (not circle) to ensure even pressure distribution.
Carefully raise the vehicle off the jack stands, remove them, and lower the vehicle completely. Use the torque wrench to tighten the lug nuts to the manufacturer's specifications (typically found in the owner's manual), following the same crisscross pattern.
Replacing 335 80R20 tires is a challenging task due to their size and weight. This guide provides a systematic approach for those with mechanical experience and the proper tools. Always prioritize safety throughout this process.
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Safety Warning: 335 80R20 tires are extremely heavy (often 100+ pounds each). Improper handling can cause serious injury. If you're unsure about any step, consult a professional tire service.
Replacement Tip: After installing new 335 80R20 tires, re-check the lug nut torque after driving 50-100 miles. New tires and wheels often "settle" after initial use, which can lead to loosening of the lug nuts.
A: The 335 in a 335 80R20 tire indicates the tire's width in millimeters. This particular tire measures 335 millimeters (approximately 13.2 inches) from sidewall to sidewall when mounted on the appropriate rim and properly inflated.
Q: What does the 80 mean in 335 80R20 tires?A: The 80 represents the aspect ratio of the tire, meaning the sidewall height is 80% of the tire's width. For a 335 mm wide tire, the sidewall height is 268 mm (335 × 0.80). This ratio affects handling characteristics, ride comfort, and overall tire diameter.
Q: What does the R in 335 80R20 tires mean?A: The R indicates radial construction, which means the tire's internal plies run radially (at 90 degrees) from bead to bead. Radial tires offer superior stability, traction, and tread life compared to older bias-ply construction. Virtually all modern passenger and light truck tires use radial construction.
Q: What does the 20 mean in 335 80R20 tires?A: The 20 specifies the wheel diameter in inches that the tire is designed to fit. This 335 80R20 tire is manufactured to mount on a 20-inch diameter wheel rim. Using a different sized wheel than specified can result in improper fitment and potentially dangerous driving conditions.
Q: What are the benefits of having 335 80R20 tires on a vehicle?A: 335 80R20 tires offer several advantages, particularly for heavy-duty applications:
A: The 335 80R20 tire size is commonly found on:
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