Suspension and Components› Front Suspension Components

SPC Performance

Adjustable Upper Control Arms

$187.44

SKU: 72123 / 72050

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The SPC Performance 72123 is a pair of adjustable upper control arms designed for improved alignment. These arms feature a tubular design that reduces weight and increases rigidity. They allow for camber adjustments from -1.5 to +3.5 degrees and caster adjustments of +/- 1.0 degrees, utilizing a patented sliding and rotating ball joint for easy modification. The kit includes ABS sensor brackets, shims, and the adjustable arms.

The SPC Performance 72050 is a rear camber arm and toe kit. It provides additional camber and includes a larger offset toe cam to bring toe angle back into range. This kit is designed for lowered Z and G35/G37 vehicles and requires a rotary file to elongate factory slots for installation.
Show original supplier description
The SPC Performance 72123 Adjustable Upper Control Arms are designed for enthusiasts seeking precise alignment control. Featuring a newly engineered tubular construction, these arms offer reduced weight by one pound per arm while enhancing rigidity. The patented sliding and rotating ball joint design allows for easy adjustment of both camber, ranging from -1.5 to +3.5 degrees, and caster, from ±1.0 degrees. This kit is sold as a pair and includes all necessary components, such as ABS sensor brackets and hub/caliper shims, for installation on a single vehicle. Complementing the front, the SPC Performance 72050 Rear Camber Arm & Toe Kit is specifically engineered for lowered Nissan 350Z and Infiniti G35/G37 models. It provides crucial additional camber adjustment capabilities. This kit also includes a larger offset toe cam to precisely correct the toe angle, ensuring optimal handling. Installation of the toe cam may require elongating factory slots using a specific SPC rotary file (#85130). Both kits are constructed from durable alloy steel. The 72123 UCAs are designed for the Nissan 350Z (2003-2008) and Infiniti G35 (2003-2007). The 72050 rear kit is compatible with the Nissan 350Z (2003-2008), Infiniti G35 (2003-2007), Nissan Altima (2002-2006), and Nissan Maxima (2004-2014). Professional installation by trained personnel is recommended due to the potential for personal injury, vehicle damage, or loss of vehicle control if installed incorrectly.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSPC Performance
Part Number72123 / 72050
CategorySuspension and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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