Details

• Brand:

  

• SKU:

  4578191AA

• Positions: Front, Lower
• Other Names:

  Differential Mount, Differential Mount, Front Lower, Differential Mount, Front, 04578191aa, Mount

• Description:

  Eliminate drivetrain harshness and restore the structural "launch" of your vehicle with the Genuine Mopar Front Lower Differential Mount (4578191AA).
  The differential mount is the silent guardian of your drivetrain's alignment. While aftermarket "solid" or "economy" bushings often use generic rubber compounds that are either too stiff (causing vibration) or too soft (allowing gear-slap), this authentic OEM mount is engineered with a specific durometer to balance torque-reaction control with cabin comfort. It ensures that power is transferred to the wheels, not lost to chassis flex.

  The Genuine Mopar Distinction

  • Vibration-Isolated Performance: Manufactured with a proprietary elastomer blend designed to absorb high-frequency driveline harmonics. This eliminates the "droning" and "shudder" that often enter the cabin when using inferior, non-OEM replacements.
  • Precision Torque Management: Engineered to maintain the exact pinion angle required for your differential. By resisting excessive "wrap" during acceleration and deceleration, it prevents the premature wear on U-joints and CV axles caused by shifting driveline geometry.
  • Anti-Fatigue Chemical Bonding: The rubber-to-metal bond is chemically treated to resist separation under extreme load. Unlike "budget" mounts where the bushing can press out or delaminate from the sleeve, this Mopar unit is built to remain a single, structural unit under maximum stress.
  • Corrosion-Resistant Housing: Features a factory-applied specialized coating that prevents rust-jacking and environmental degradation. This ensures the mount remains seated securely in the frame, preventing the "clunking" noises associated with loose or corroded hardware.
  • Surgical Geometric Fit: Molded from original factory CAD data for a "drop-in" installation. There is no need for specialized shaving or "forcing" the mount into place, ensuring your differential remains perfectly centered and stress-free.

  Don’t let a worn mount lead to expensive drivetrain repairs or a vibrating ride. Restore the refined strength and silent operation of your front end with the only mount designed and validated by the original equipment manufacturer.

• Condition: New
• Notes: Transmissions: Automatic vlp 42rle trans. 5-speed auto w5a580 transmission. 6-speed manual tremec transmission.
  Engines: All 5.7L V8 Engines. 3.5l v6 high output 24v mpi engine. 3.0l v6 24v vvt engine. 3.0l v6 turbo diesel engine. 3.6l v6 24v vvt engine. 5.7l v8 hemi mds vvt engine.
• Applications: 392. Max AWD. Plus AWD. Road & Track. Yellow Jacket. 100th Anniversary Edition.

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