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Premium Housing Construction - Durable materials with elegant finishing details
5 is an essential addition for enthusiasts looking to maintain drivetrain health during routine service intervals
or you can get them paint matched
Built from high-strength materials with SPC’s proven engineering
Spool Performance ZF 8HP70 / 8HP75 / 8HP76 Billet 300M C-Hub Cog Drive GGLighting Premium Housing Construction - DurableSpool Performance ZF 8HP45 8HP50 8HP51 Billet 300M C Hub Cog Drive The factory C hub cog drive in ZF 8HP70, 8HP75, and 8HP76 transmissions is produced from cast steel. While adequate at stock power levels, casting brings inherent weaknessesporosity, uneven grain structure, and localized stress pointsthat are exposed as torque output, line pressure, and shift aggression increase. Common failure modes include cog tooth deformation, spline wear, and
