SPL Parts Toyota GR86 / Subaru BRZ Rear Knuckle Bushings
SPL Parts Toyota GR86 / Subaru BRZ Rear Knuckle Bushings is backordered and will ship as soon as it is back in stock.
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SPL Parts Toyota GR86 / Subaru BRZ Rear Knuckle Bushings (SPL RKB FRS) is designed for spherical suspension bushing upgrade on the listed Toyota GR86 / GT86 / Scion FR-S / Subaru BRZ applications.
Rear knuckle bushings replace factory rubber with PTFE-lined spherical bearings in precision-machined 6061-T6 aluminum housings.
Specifications and fitment
| Brand | SPL Parts |
|---|---|
| Manufacturer part number | SPL RKB FRS |
| Application | Toyota GR86 / GT86 / Scion FR-S / Subaru BRZ |
| Function | Spherical suspension bushing upgrade |
| Supplied as | Pair |
Setup and ordering notes
Follow the SPL installation instructions for the exact part number. Check clearance through suspension travel; have alignment checked after changing suspension links, bushings or geometry.
Product FAQs
Is this a rubber or spherical bearing replacement?
This part uses a low-friction spherical bearing in place of a compliant rubber interface. Match the named suspension location and part number; trailing-arm, knuckle and inner-arm bushings are different components.
Does a monoball bushing kit add camber or toe adjustment?
This is a spherical-bearing replacement for the named mounting position. Its purpose is to reduce compliance and allow articulation; it is not an adjustable camber or toe arm. Use the correct link or arm when alignment adjustment is also needed.
What should a street-car owner know about NVH?
Replacing compliant factory mounts or bushings with a more rigid connection can transmit more road noise or impacts. SPL identifies an NVH tradeoff for this part; consider it when choosing components for a daily-driven car.
Explore related SPL components
- SPL Parts Toyota/Subaru GR86/BRZ/GT86/FR-S Front Lower Control Arms
- SPL Parts GR86/BRZ/GT86/WRX Rear Lower Camber Arms
Pit Garage is an automotive service and performance parts shop in the Los Angeles area. Contact us with your chassis, drivetrain, ride height and installed suspension if you need help selecting the correct SPL part.




