Yes, and no. Clearances aren't all the same.. You are correct that the two lowest points (diffs) wont see much if any increased clearance, which is important in some cases.
Adding a lift, though, will increase the clearance of everything else (frame, body, etc)... giving you that much more room before bottoming out in the soft stuff, impacting important parts on the hard stuff, or simply getting high-centered.
OK, sure, the frame is higher. The complete rear axle still drag at the same spots. The LCAs still drag at the same spots. The driveshaft input at the rear diff will still drag at the same spot. But, yeah, your frame is sitting higher.
Sponsored