McLaren 570s Axle Rear Left Control Arm Wheel Hub

McLaren 570S, the rear left suspension and drivetrain assembly is a modular system designed for high-stress track environments. Because the 570S belongs to the “Sports Series,” many of these parts are shared with the 540C and 570GT, but differ from the “Super Series” (720S/750S) which uses a different hydraulic suspension architecture.

1. Rear Left Axle (Drive Shaft)

The rear axle connects the 7-speed SSG transmission to the wheel hub. It features high-articulation CV joints to handle the 570S’s significant suspension travel and torque.

• OEM Part Number: 11G0296CP

• Notes: This part is typically universal for both the Left and Right sides on the 570S platform.

   

2. Rear Left Control Arms (Wishbones)

The 570S uses a double-wishbone setup. In a rear collision or curb strike, the Upper Control Arm is often the first “sacrificial” part to bend to protect the carbon fiber MonoCell II chassis.

• Upper Control Arm (Rear Left): 11B0073CP

• Lower Control Arm (Rear Left): 11B0115CP (Often sold as part of the wider “Suspension Arm” assembly).

• Material: High-strength forged aluminum to minimize unsprung weight.

3. Rear Left Wheel Hub & Spindle

The hub assembly houses the wheel bearing and provides the mounting points for the brake calipers and control arms.

• Wheel Spindle/Knuckle (Rear Left): 11B0115CP (Note: In some catalogs, the spindle and lower arm are listed under the same primary group number).

• Wheel Bearing: 11B0322CP

  • Technical Detail: This is a press-fit bearing unit. If you are experiencing a “humming” noise at speed, it is often more cost-effective to replace the bearing rather than the entire spindle.

• Bolt Pattern: $5 \times 112 \text{ mm}$ (Standard McLaren Sports Series fitment).

Component Summary Table

Installation & Technical Warning

Alignment Requirement: Replacing any of these components—specifically the control arms—requires a full four-wheel laser alignment. The 570S is extremely sensitive to Rear Toe settings; even a $0.5^\circ$ deviation can cause instability under heavy braking or “crabbing” under acceleration.

Torque-to-Yield Bolts: McLaren recommends replacing the specialized hub-to-spindle bolts and the axle nut once they have been removed, as they are designed to stretch upon initial torquing.