Here's why:
* Increased Speedometer Inaccuracy: Larger rims usually mean you'll need smaller diameter tires to maintain a similar overall rolling diameter. This will significantly alter your speedometer's accuracy. The car thinks it's going slower than it actually is. This is more of an inconvenience, but persistent inaccuracies can affect how you drive, leading to other potential issues.
* Strain on the Transmission: A smaller diameter tire (to compensate for the larger rim) will increase the engine's RPM at any given speed. The transmission will constantly be working harder than it was designed for, putting extra stress on the components. This increased stress, over time, *could* lead to premature wear and tear on the transmission, clutch (if automatic), and other drivetrain components.
* Strain on other components: The larger wheels and potentially smaller tires will impact the handling and steering and might overwork suspension components. This in itself is not a direct threat to the transmission but can exacerbate existing issues or create new ones, which could lead to transmission problems down the line.
* Potential for rubbing: 22" rims are very large for a Buick Century. There's a significant chance they will rub against the fenders, suspension components, or brake calipers, which can damage those parts and indirectly impact drivability and potentially stress other systems.
In short, while the transmission isn't directly affected by wheel size, the indirect consequences of using 22-inch rims on a Buick Century are significant enough to potentially lead to transmission problems and damage other parts. It's strongly discouraged. Stick with wheel and tire sizes recommended by the manufacturer for optimal performance and longevity of your vehicle.
