What are this biggest rims you can put on a 1968 Buick Skylark?

The largest rims you can typically fit on a 1968 Buick Skylark are around 20 inches, but this can vary based on suspension modifications and body clearance. It's essential to consider the overall diameter of the tire as well, as larger tires can affect handling and ride quality. Custom wheel offsets and potential fender modifications might be necessary to avoid rubbing. Always consult with an experienced wheel and tire specialist for the best fit.