Answer
Sep 18, 2025 - 06:41 AM
For the Ford Performance 2015-2026 Mustang Super 8.8" IRS Loaded Differential Housing 3.55, the key word here is “Loaded”. In Ford Performance terminology, a “loaded” differential typically means it comes pre-assembled and ready to install, which includes: Ring and pinion gears , Carrier , Bearings, Clutch packs (if it’s a limited-slip unit). So yes, the clutch packs should already be installed in this differential. You should not need to buy or install separate clutch packs.
