SuperPro SPF5392K Rear Subframe Mount Bush Kit for 11-21 Jeep Grand Cherokee WK2

Vehicle Fitment

• 2011-2021 Jeep Grand Cherokee (WK2 chassis)
• 2011-2021 Dodge Durango (WD/WK2-shared platform)

Fitment Notes

• Rear subframe-to-chassis mount position
• Does NOT fit the Jeep Grand Cherokee Trackhawk - this exclusion is stated explicitly on SuperPro's own product listing, so confirm your trim before ordering if you have an SRT/Trackhawk model
• Dodge Durango fitment reflects the shared WK2/WD platform between the Grand Cherokee and Durango from this generation

Features

• Replaces soft, heavily-voided factory rubber subframe bushings that degrade handling and traction over time
• Significantly reduces subframe movement for improved handling and responsiveness
• Reduces wheel hop under acceleration and unwanted movement during load and gear changes, especially relevant on higher-powered variants
• Constructed from premium-grade polyurethane offering superior resistance to wear, heat, and deformation versus stock rubber
• Provides a precise, stable subframe-to-chassis connection without compromising ride comfort
• Retains OEM-level noise and harshness isolation despite the performance upgrade
• Performance does not degrade over time - the synthetic elastomer resists the element and load-based breakdown that affects rubber
• Suitable for street, towing, and off-road use

Specifications

• Fitting Position: Rear, Subframe to Chassis Mount
• Bushing Material: Polyurethane
• Installation Time: Approx. 3 hours
• Installation Difficulty: Hard - mechanical expertise or professional installation required (involves pressing out factory bushings)

Included Components

• 8x Subframe Bushings
• 4x Tubes
• 4x Washers
• Installation Sleeves and Hardware
• Instruction Manual

Product Description

The rear subframe mount is where the rear suspension connects to the Grand Cherokee's body and passenger compartment, and manufacturers typically use soft, heavily-voided rubber here to tune ride comfort and cabin isolation. On the WK2 platform, that soft rubber degrades over time, letting the subframe shift more than it should under load - a problem that gets worse on higher-powered variants, where it can contribute to wheel hop under acceleration and looseness during hard cornering or gear changes.

SuperPro's SPF5392K replaces these mounts with a polyurethane design engineered to hold the subframe's connection to the chassis far more precisely, while still preserving OEM-level noise and harshness isolation rather than trading comfort for stiffness. Because the Grand Cherokee WK2 and Dodge Durango share this platform, the kit covers both vehicles from the same generation.

This kit suits Grand Cherokee and Durango owners - particularly those running larger wheels/tires or higher-output SRT variants where subframe wear accelerates - who want tighter, more predictable handling without sacrificing daily-driving comfort. Installation is rated hard, involving pressing out the factory bushings, so professional installation or genuine mechanical expertise is recommended.