An overland could have any of 2 or 3 different spring sets under it. Rubicon could have any of 2 or 3 spring combinations under it, and so on. So if you have the lightest Overland springs, the 2″ lift kit COULD give you more lift than an Overland with the stiffest Overland springs under it – just for example. Different weight vehicles.

https://www.jeepgladiatorforum.com/forum/threads/what-is-the-real-height-of-the-mopar-2-lift.35558/