Class 4 Practice Results - Restart New Quiz Restart New Quiz #1. Different-sized tires can Always be used on the same axle. Always be used on the same axle. Be dangerous if used on different axles. Be dangerous if used on different axles. be dangerous if used on the same axle. be dangerous if used on the same axle. Never be used on the same vehicle. Never be used on the same vehicle. Using tires of different sizes or different types (e.g., radial and bias ply) on the same axle can adversely affect handling, especially when braking. Next