Uploaded February 2020 | Updated September 2026, 3 days ago

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How Subaru center differentials work and which one can transfer the most power to the rear while one of the front wheels is lifted - MPT vs VTD vs viscous center differential.

Facts about the center differentials in this video:
MPT
**Multiplate transfer clutch
**Found in most automatics (yes, CVTs have them too)
**Power transferred to rear via hydraulic plates that clamp together
VTD
**Variable torque distribution
**Found in various automatics with turbo and H6 motors
**Power transferred to rear via open gears and an MPT acting an LSD
Viscous Center Differential
**Found in all 5MT manuals
**Power transferred to rear via open gears and a viscous LSD

Both automatic Subaru Foresters in this video conducted the test with the electronic locking center differential engaged.

How to install a locking center differential in your Subaru (for free):
youtube.com/watch?v=6AoEm-CSa74

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Featuring sounds from Night Owl by Broke for Free
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