What is the difference between the cheaper Phantom Grip Limited Slip Differential (LSD) and the more expensive LSD from OPM?
Shane Portnoff answers: CRE and OPM make a limited slip, $650. The only difference between theirs and phantom grip is they put clutch plates in between the differential side gears and the carrier. The spring package is sandwiched in between the two side gears putting pressure at the clutch plates, creating “limited slip”. Of course the clutch material will wear out also, but that is replaceable and probably cheaper than a new differential assembly. The phantom grip is just the spring package, so the friction created is between the side gears and the differential carrier. The friction coefficient must be kind of unpredictable plus the gears and carrier assembly will eventually wear out. Also there will be ground up metal inside the trans.
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