Advice Blog General
August 20, 2026
Speak to one of our experts.
Speak to one of our experts.
We’ve selected the material that offers the best balance of performance and comfort for your vehicle’s needs.
Our Comfort grade bushes are designed to enhance ride quality and minimise road noise, making them ideal for everyday driving. They are softer, providing maximum suspension articulation and a cushioned feel that absorbs bumps and vibrations effectively. This softer composition ensures a smoother, quieter driving experience, especially in Classic cars or Land Rovers. Comfort bushes maintain a balance between originality and ease of driving, catering to those who value a relaxed Factory-Fresh drive.
The Dynamic grade bushes offer a middle ground between Comfort and Performance. They are slightly firmer than the Comfort bushes, which improves handling and cornering response without sacrificing too much ride comfort. These bushes are ideal for drivers who enjoy a more engaging driving experience while still needing a level of comfort for daily use, whilst also being suitable for spirited driving & light track use.
Performance grade bushes are the stiffest of the three, designed for enthusiasts who demand the utmost in handling and control. They offer minimal deflection, enhancing vehicle response and stability during aggressive driving. These bushes are perfect for high-performance or track vehicles where precision and handling are critical. While they might sacrifice some ride comfort, they deliver superior driving dynamics and control, ideal for those who push their vehicle to its limits – Including Towing!
These rods are produced in 90 Shore A which allows them to be machined on a lathe.
Polybush Shop
Vehicle Sets
OE Reference: Part of 48830-47010
Bushes Per Vehicle Set: 2
Vehicle Sets
OE Reference: Part of 48710-52090
Bushes Per Vehicle Set: 2
7BX
Vehicle Sets
OE Reference: Part of 48730-33160
Bushes Per Vehicle Set: 2
7BY
Vehicle Sets
OE Reference: 48714-47010
Bushes Per Vehicle Set: 2
7BZ
Vehicle Sets
OE Reference: 48725-47120
Bushes Per Vehicle Set: 2
Polybush – Thinsulate Beanie
Polybush – Baseball Cap
Bushes Per Vehicle Set: 2
Photos
Toyota Corolla GR - Fitted With Polybush
Fitting Videos
Fitting Instructions
Additional product fitting instructions can be found below:
Specifications
The GR Corolla, chassis code GZEA14, is a very different animal from the Corollas either side of it: a three cylinder, four wheel drive homologation special built from 2022 onwards. It leaves the factory well sorted, so this is not a repair job. It is about removing the last of the compliance Toyota engineered in for comfort, and the rear axle is where that compliance lives.
The GZEA14 uses a multi link rear end with separate upper and lower control arms, a trailing arm, and a spring bucket that doubles as the lower rear arm mount. Each of those pivots on rubber chosen to absorb road noise, and each allows a little unwanted toe and camber change when the car is loaded hard. On a track day or a fast B road that shows up as a rear axle which settles a fraction later than the driver expects.
Polybush covers the trailing arm, both lower control arm inners, the upper control arm inner and the rear drop link. For the related hatchback see the GR Yaris, the rear drive GT86, or browse the Toyota range in full.
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