Superpro SPF3849K Rear Diff Mount Bush Kit for 03-20 Infiniti/Nissan Z

Vehicle Fitment

• 2003-2008 Infiniti G35 (Base, Journey, Sport) (3.5L V6, RWD)
• 2008-2013 Infiniti G37 (Base, Journey, Sport, IPL) (3.7L V6, RWD)
• 2011-2012 Infiniti G25 (Base, Journey) (2.5L V6, RWD)
• 2003-2009 Nissan 350Z (All trims) (3.5L V6, RWD)
• 2009-2020 Nissan 370Z (Base, Sport, Touring, Nismo, Heritage) (3.7L V6, RWD)

Features

• Rear differential to subframe polyurethane bushing kit
• Replaces soft OEM rubber bushings for longer life
• Reduces unwanted differential movement during acceleration
• Improves rear drivetrain stability and response
• Minimizes wheel hop under hard launch conditions
• Lifetime warranty on polyurethane components
• Precision molded for accurate fit and alignment
• Helps maintain rear suspension geometry under load

Specifications

• Part Number: SPF3849K
• Position: Rear Differential to Subframe Mount
• Material: High-durability polyurethane
• Compatible with RWD drivetrain configurations
• Installation: Rear of chassis differential mounts
• Lifetime warranty against defects in materials and workmanship

Included Components

• 5x Polyurethane differential mount bushings
• 2x Metal sleeves

Product Description

The Superpro SPF3849K Rear Differential Mount Bush Kit upgrades the rear differential to subframe connection on a range of Nissan Z and Infiniti vehicles. OEM rubber bushings can wear prematurely, leading to excess movement under acceleration and braking. This kit replaces those soft components with engineered polyurethane bushings that deliver improved drivetrain stability, better throttle response, and reduced wheel hop for spirited driving or everyday use.

Designed specifically for RWD 350Z, 370Z, and Infiniti G-series coupes (G25/G35/G37), the SPF3849K maintains optimal differential alignment while still providing vibration cushioning. Installation typically involves replacing the rear differential mount bushings with the included components and should be followed by a brief road test to confirm performance gains. Fitment is confirmed through model year 2020. Coverage for 2021-2025 is unconfirmed at time of listing and may vary by chassis or trim; always verify with your VIN or manufacturer fitment guide before installation.