3 ton capacity for each stand or for both when used as a pair?

They are used as a pair, so total weight is 3-tons on the pair. Jack stands come with a weight rating, which refers to the maximum weight they can safely support. This rating is determined through rigorous testing procedures to ensure safety and reliability. It’s essential to remember that the weight rating is per stand, and usually, you will use two stands together, effectively doubling the capacity. Always use jack stands in pairs for stability. Even if you’re lifting only one side of the vehicle, use two jack stands to distribute the weight evenly.