Powerflex Transfer Case Bushing Insert - Black Series

Product Details

Zero Compromise Torque Transfer: Powerflex Black Series Mount Insert Drivetrain deflection is the enemy of launch stability and throttle translation. Under heavy load or rapid acceleration, the factory rubber transfer case bushing on the E70/F15 X5 and E71/F16 X6 flexes excessively due to its soft OE voiding structure. This uncommanded twist creates slop in the xDrive system and alters driveshaft angles. The Powerflex PFF5-1428BLK Black Series Insert is a motorsport-grade solution engineered to anchor your transfer case directly to the chassis.

Constructed from Powerflex’s stiffest 95A durometer polyurethane, this Black Series insert is designed specifically for high-load track, autocross, and extreme performance applications. By filling the factory empty spaces, it drastically increases local structural rigidity, ensuring maximum power gets to the pavement with zero delay. Expect a noticeable, track-ready increase in mechanical connection, alongside a predicted increase in cabin NVH—the hallmark trade-off for motorsport-level execution.

Technical Features:

• 95A Durometer Polyurethane: Engineered with Powerflex's stiffest compound for zero-compromise track deflection resistance.

• Instant Torque Translation: Optimizes xDrive response by stabilizing the transfer case housing under load.

• Slip-In Engineering: Direct-fit design inserts smoothly into original factory bushing voids for an efficient install.

• Drivetrain Protection: Restricts radial movement to shield driveshaft guibos and u-joints from angular fatigue.

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