SPL Parts 89-98 Nissan 240SX (S13/S14) / 89-02 Nissan Skyline (R32/R33/R34) Rear Upper Camber Arms

Rear Upper Camber Arms for Nissan 240SX S13/S14, 300ZX Z32, and Skyline R32/R33/R34 with SPL RUA S13

The SPL RUA S13 replaces the factory rear upper control arm on the Nissan 240SX S13, S14, 300ZX Z32, and Skyline R32, R33, and R34 with a precision CNC machined 6061-T6 billet aluminum assembly delivering a wide range of rear camber adjustment. Built using Finite Element Analysis, the SPL RUA S13 exceeds OEM strength while reducing unsprung weight and eliminating the bushing compliance that causes dynamic camber change under hard cornering and suspension travel. PTFE-lined FK spherical rod ends eliminate bushing deflection for predictable, consistent rear alignment in both street and motorsport applications.

Features and Benefits

• CNC milled 6061-T6 billet aluminum main arm, black anodized for corrosion resistance
• Electroless nickel plated 4130 chromoly double adjuster with 360-degree rotating 6061-T6 aluminum clamps; no jam nuts required
• Blue anodized Ti-6Al-4V titanium socket head cap screws reduce unsprung weight
• 3-piece PTFE-lined FK spherical rod ends: self-lubricating, self-cleaning liner, operating range -65 to 325 degrees F
• Wide range of rear camber adjustment for lowered street builds and race alignments
• Eliminates dynamic camber change from bushing deflection under cornering and braking loads
• Compatible with S13, S14, Z32, R32, R33, and R34 platforms
• Sold as a pair; made in the USA

Fitment

Specifications

What Is Included

• 2 x 6061-T6 billet aluminum rear upper camber arms (SPL RUA S13)
• 4130 chromoly double adjuster with 360-degree rotating aluminum clamps
• PTFE-lined FK spherical rod ends
• Blue anodized titanium socket head cap screws
• Installation instructions

Frequently Asked Questions

What platforms does the SPL RUA S13 fit?
The SPL RUA S13 is confirmed for 1989-1994 Nissan 240SX S13, 1995-1998 Nissan 240SX S14, 1990-1996 Nissan 300ZX Z32, 1989-1994 Nissan Skyline R32, 1994-1998 Nissan Skyline R33, and 1999-2002 Nissan Skyline R34. These share a common rear upper arm geometry across the S and R chassis families.

How much camber adjustment does the SPL RUA S13 provide?
The double-adjuster design provides a significantly wider range of rear camber adjustment than OEM components, allowing alignment technicians to set aggressive negative camber for track use or correct camber on lowered street builds.

Is the SPL RUA S13 street legal?
Yes. The SPL RUA S13 is a suspension alignment component and does not affect emissions or vehicle safety systems. It is suitable for street use in all 50 states. A professional alignment is required after installation.

Do I need special tools to adjust camber with the SPL RUA S13?
No special tools are required. Loosen the titanium clamp hardware, rotate the 4130 chromoly double adjuster to change length, and retighten. The 360-degree rotating clamp design eliminates the need for jam nuts and allows adjustment with the arm still on the vehicle.

Can I use the SPL RUA S13 on a drift build?
Yes. The SPL RUA S13 is widely used in drift applications on S13 and S14 240SX platforms. The wide camber adjustment range accommodates aggressive negative camber setups typical of drift alignment configurations.

How do I set the correct length when installing the SPL RUA S13?
Place the SPL RUA S13 next to the OEM arm and adjust to match the factory center-to-center length before installation. Final camber is set on a four-wheel alignment rack. The groove on one end of the adjuster indicates the left-hand threaded side.

Does installing this product affect my factory warranty?
Under the Magnuson-Moss Warranty Act, a manufacturer cannot void your powertrain warranty solely because you installed an aftermarket suspension component, unless they can demonstrate it directly caused the failure. Consult your dealer for your specific situation.

Are replacement rod ends available for the SPL RUA S13?
Yes. SPL Parts offers replacement right-hand and left-hand threaded FK rod ends for service intervals or damage replacement. These are available directly from SPL Parts or authorized dealers.

Installation Instructions

1. Safely raise and support the vehicle on jack stands; remove the rear wheels for access.
2. Photograph or record the OEM arm position and existing camber measurement.
3. Remove the OEM rear upper camber arm mounting bolts and set the arm aside.
4. Place the SPL RUA S13 alongside the OEM arm; note the groove indicating the left-hand threaded end and pre-set the adjuster to match OEM length with equal thread engagement.
5. Install the SPL RUA S13 with OEM or supplied hardware; snug but do not fully torque until at ride height.
6. Lower the vehicle to ride height and torque all mounting bolts to factory specification.
7. Tighten the 360-degree rotating clamps to lock the adjuster position.
8. Have the vehicle professionally aligned on a four-wheel alignment rack before driving.

Proposition 65 Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov.