Whiteline KTA138A Adj Rear Upper Camber Arm for Ford Focus/Mazda 3/Volvo C30/S40

Vehicle Fitment

• 2008-2018 Ford Focus (All Trims, FWD) -- includes Focus ST 2013-2018, Focus RS 2016-2018
• 2004-2013 Mazda 3 (All Trims, FWD) -- includes Mazdaspeed3
• 2008-2013 Volvo C30 (All Trims, FWD)
• 2004-2012 Volvo S40 (All Trims, FWD)

Fitment Notes

• Rear upper control arm position -- adjusts camber
• Sold as a pair -- covers both sides
• On-car adjustable -- no need to remove arm for adjustments
• Rear wheel alignment required after installation
• Tricky installation -- experienced installer recommended
• Installation time: approximately 2 hours
• Companion rear lower toe arm: Whiteline KTA137
• 3-year warranty

Features

• Adjustable rear camber -- corrects factory camber after lowering
• Camber range: -1.5° to +2.0°
• Turnbuckle adjustment -- on-car adjustable without removing arm
• Heavy duty alloy construction -- anodized finish
• High performance bushings pre-installed
• Low compliance bushings -- minimizes NVH
• Improved traction and cornering grip
• Improved tyre life through proper camber alignment

Specifications

• Part Number: KTA138A
• Position: Rear Upper Control Arm
• Alignment Type: Camber
• Camber Range: -1.5° to +2.0°
• Adjustment Type: Turnbuckle
• On-Car Adjustable: Yes
• Material: Alloy (anodized)
• Units: Pair (2 arms)
• Bushings: Pre-installed
• Wheel Alignment Required: Rear
• Warranty: 3 years

Included Components

• 2x Adjustable Rear Upper Camber Arms with bushings pre-installed
• All mounting hardware
• Installation instructions

Product Description

The Whiteline KTA138A is a pair of adjustable rear upper camber arms for the 2008-2018 Ford Focus, 2004-2013 Mazda 3, 2008-2013 Volvo C30, and 2004-2012 Volvo S40. On lowered vehicles, the factory rear suspension geometry pulls the rear wheels into excessive negative camber -- a condition that causes accelerated inner tyre wear, reduces the effective contact patch under cornering loads, and makes rear alignment unachievable within factory spec. The KTA138A corrects this by replacing the fixed-length factory upper arm with an adjustable arm that provides a -1.5° to +2.0° camber correction range.

Camber is adjusted via a turnbuckle on the arm body -- the adjustment is made on-car without removing the arm, significantly simplifying corner balancing and alignment check sessions. Each arm ships with high performance low compliance bushings pre-installed, ready to bolt in without additional preparation. Heavy duty anodized alloy construction provides long-term corrosion resistance and durability. Installation takes approximately 2 hours but is considered technically tricky -- an experienced installer is recommended. Rear wheel alignment is required after installation. Pairs with Whiteline KTA137 (rear lower toe arm) for a complete rear geometry correction solution. Backed by Whiteline's 3-year warranty.