ASE A4 Suspension and SteeringWheels and Tires Diagnosis and RepairMedium
A technician is performing a tire rotation on a rear-wheel drive (RWD) vehicle with non-directional tires and full-size matching wheels. Which tire rotation pattern is generally recommended to maximize tire life and ensure even wear?
- AForward cross pattern (front tires move straight back, rear tires cross to the front).
- BX-pattern (all tires cross to the opposite axle and side).
- CRearward cross pattern (rear tires move straight forward, front tires cross to the rear).
- DSide-to-side pattern (tires only swap sides on the same axle).
Show answer & explanationAnswer & explanation
Correct answer: C. Rearward cross pattern (rear tires move straight forward, front tires cross to the rear).
For RWD vehicles with non-directional tires, the rearward cross pattern is recommended. This involves moving the rear tires straight to the front, and the front tires crossing to the opposite rear position. This ensures all tires spend time on the drive axle and non-drive axle positions, promoting even wear.
Why the other options are wrong
- A. The forward cross pattern is typically used for FWD vehicles.
- B. The X-pattern is a universal pattern but not specifically optimized for RWD, and often used for 4WD/AWD.
- D. A side-to-side pattern does not allow tires to experience different axle stresses, which is crucial for even wear.
RWD Tire Rotation Pattern
For rear-wheel drive vehicles with non-directional tires, the rearward cross pattern is used: rear tires move straight forward, and front tires cross to the opposite rear.
- Maximizes tire life by distributing wear.
- Applies to non-directional tires only.
- Ensures all tires experience drive axle and steering axle forces.
Memory trick: RWD: Rears Go Forward, Fronts Cross Back.