SPL Parts Non-Adjustable Front Caster Rod Bushings - Toyota GR Supra (A90/A91) & BMW Z4 (G29)

OVERVIEW

SPL Parts FKS Series Non-Adjustable Front Caster Rod Bushings (CRBN) replace the stock flexible rubber bushings with low-friction, articulating spherical bearings, eliminating bushing deflection and reducing friction. This maintains optimum suspension geometry under load to improve braking and handling feedback.

The non-adjustable version delivers the same deflection control and bearing quality as the adjustable CRB, without the caster-adjustment spacers — ideal if you're happy with factory caster and simply want to remove the compliance from the front end.

SPECS

• FKS Series non-adjustable design
• Massive 1"-sized FK Racing bearings with self-lubricating Teflon liners
• Eliminates bushing deflection and reduces friction under load
• Maintains factory caster geometry
• Retains the factory caster rods — OEM arms not included
• Sold as a pair; made in the USA

PARTS INCLUDED

• 2x SPL FKS Series non-adjustable front caster rod bushings with FK 1" spherical bearings
• Mounting hardware (OEM arms not included)

TECH RESOURCES

• A professional wheel alignment is recommended after installation
• Need caster adjustment? See our Adjustable Caster Rod Bushings (CRB G29), which add ±4 degrees of adjustment and can create sway bar clearance
• Pairs with our Front Lower Control Arms (FLCA G29)
• Spherical bearings transmit more noise and vibration than rubber bushings — expected on a performance component
• Professional installation recommended — bushing replacement requires a press
• Installation instructions (PDF): SPL CRBN G29 Install Guide

PART NUMBER

• SPL CRBN G29

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