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Porsche > 992 (911) MK1 2019-2024 > 992.1 Carrera 2S / GTS 3.0L 2019-24 > Suspension Upgrades >

Control Arms Rear

Control Arms Rear

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DISPLAYING 1 to 4 (of 4 products)
Adjustable rear control arm and shim kit. Porsche 991 / 992 - 99133105321, 99133105302, 99133105310, 9P1505311 - S158.S188
10
Adjustable rear control arm and shim kit. Porsche 991 / 992
S158S188
Product Information
Product Information

Adjustable rear control arm and shim kit.
Sold as a pair

Fits:
Porsche 991.1 - 2012 to 2016
Porsche 991.2 - 2016 to 2019
Porsche 992.1 - 2019 to 2024

Product Description 

If you're looking for more negative camber on the rear of your 991/992 and increase handling performance, then look no further than the Rennline GT3 OEM-style control arms. Porsche never made a factory style shim-able rear control arm on the non GT 991 cars, so we have you covered. Quickly and easily adjust your camber at each corner to suit your driving style and/or track needs.

This kit comes with everything you need - two control arms and a nicely packaged shim kit you can bring to the track

  • Control arm body constructed from forged 6082-T6 cast aluminum
  • Widen the track of your car
  • Increased negative camber up to 2.5 degrees OVER factory settings (total -3.5°)
  • Option to lock out eccentric bolt to avoid losing alignment
  • 75A durometer bushings
  • 10mm shim = 2° (6mm, 4mm stacked)
  • Not compatible with GT3 / GT3RS / GT2 / GT2RS models due to different control arm design

Diagram ref no 1



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

S158S188
99133105321
99133105302
99133105310
9P1505311

The product you are viewing cross references to these numbers
GT3 Adjustable outer lower control arms – 2 Piece. Porsche 991 / 992 / 981 - 2180044, 992407151G, 99134105321, 99134105301, 99134105303, 99134105302, 99134105304, 992407151D, 992407151B, 992407151E
8
GT3 Adjustable outer lower control arms – 2 Piece. Porsche 991 / 992 / 981
2180044
Product Information
Product Information
GT3 Adjustable outer lower control arms – 2 Piece,
with adjustable caster puck.

elephantracing

Fits:
Porsche 991 Front Only (Does Not Fit 991 GT3)
Porsche 992 Front Only (Does Not Fit 992 GT3)
Porsche 981 Front And Rear


GT3 Lower Control Arms (LCA)

992 GT3 cars are equipped with a special front GT3 control arm that is two-piece and length-adjustable by fitting shims between the halves. The changeable length allows for aggressive camber settings and track width adjustment, increasing cornering grip and performance.
Unfortunately the stock 992 GT3 control arm cannot be fit to a non-GT3 992 because the ball joint end is completely different.
That’s why we created these GT3 type front lower control arms to fit the 992 C2, C4 and Turbo cars.
Our GT3 ERX LCAs for the 922 provides the same type front camber and track width adjustment for non-GT3 992 cars.

The GT3 ERX lower control arm is a system built up of three component parts, each ordered separately:
– GT3 ERX adjustable outer lower control arm
– GT3 adjustable inner lower control arm
– GT3 lower control arms shims (various thicknesses, stackable)

GT3 ERX Front Outer Lower Control Arms

Elephant Racing has developed an upgraded GT3 type front lower control arm for the non-GT3 992 cars. Our GT3 type arms have the correct ball joint style for fitment to 992 C2, C4 and Turbo cars. They do not fit 992 GT3 cars.

Like the factory lower control arms, the Elephant Racing outer arm has an integrated ball joint that is weather sealed. Unlike the factory lower control arms, the ball joint in the Elephant Racing arms is rebuildable and we offer the rebuild kit allowing you to renew the arm when needed.

The GT3 ERX LCAs have features to accept the factory height sensor and air deflectors.

The outer arms are sold as a left and right side pair, to be combined with our GT3 inner lower control arms – orderable separately.

These can be paired with a choice of GT3 lower control arms inner:
– Elephant Racing GT3 lower control arm inner rubber bushing
– Elephant Racing GT3 lower control arm inner spherical bearing


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

2180044
2180044
992407151G
99134105321
99134105301
99134105303
99134105302
99134105304
992407151D
992407151B
992407151E

The product you are viewing cross references to these numbers
GT3 ERX Inner lower control arm (LCA), Rubber Bushing Module. Porsche 986/987/996/997/981/718/991/992 - 99634144190, 2180039, 99134105321, 99134105301, 99134105303, 99134105302, 99134105304, 992407151D, 992407151B, 992407151E, 992407151G, 99634105306, 99634105307, 99634105316, 99634105314, 99634105317, 99634105318, 99634105319, 99734105300, 99734105303, 99134105306
2
GT3 ERX Inner lower control arm (LCA), Rubber Bushing Module. Porsche 986/987/996/997/981/718/991/992
2180039
Product Information
Product Information
GT3 ERX Inner lower control arm (LCA), Rubber Bushing Module.

elephantracing

Fits:
Porsche 996, 997, 991, 992 W/ GT3 Style Control Arms (Front/Rear),
Porsche Boxster, Cayman 1999>> W/ GT3 Style Control Arms (Front Only)

Elephant Racing has developed GT3 type inner lower control arms.
These are readily available and dimensionally identical to the factory parts. They can be mix-matched with the factory type inner/outer lower control arm and shims.
The Elephant Racing inner arm is offered in two flavors, GT3 Street Inner Lower Control Arm and GT3 Cup Inner Lower Control Arm. GT3 street is equipped with a rubber bushed central bushing and the GT3 Cup is equipped with a solid caster adjustable central bushing.
Our GT3 Street Inner Lower Control Arm has sport-hardness rubber bushings to provide upgraded control and driver feedback while still offering good road noise isolation.
Our GT3 Cup Inner Lower Control Arms uses weather sealed spherical bearings. These deliver superior precision, control, and performance. They will transmit a bit more road noise than rubber bushings.

These can be paired with a choice of GT3 outer control lower arms:
– Elephant Racing GT3 Street Outer Lower Control Arms
– Elephant Racing GT3 Cup Outer Lower Control Arms
– Factory GT3 Street Outer Lower Control Arms

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

2180039
99634144190
2180039
99134105321
99134105301
99134105303
99134105302
99134105304
992407151D
992407151B
992407151E
992407151G
99634105306
99634105307
99634105316
99634105314
99634105317
99634105318
99634105319
99734105300
99734105303
99134105306

The product you are viewing cross references to these numbers
Spherical bearing inner GT3 monoballs. Porsche 986/987/996/997/981/718/991 - 2180030, 99634144190
5
Spherical bearing inner GT3 monoballs. Porsche 986/987/996/997/981/718/991
Special Offer
2180030
Product Information
Product Information
Spherical bearing inner GT3 monoballs for factory GT3 lower arm.

1 kit required per axle

elephantracing

Fits
Porsche 986 Boxster - Front and Rear
Porsche 987 Boxster and Cayman - Front and Rear
Porsche 996 - Front and Rear
Porsche 997 - Front and Rear
Porsche 981 - Front and Rear
Porsche 718 - Front and Rear
Porsche 991 - Front Only
Porsche 992 - Front Only
* Not For '12+ 991, 992 GT3/GT4

GT3 Street Inner Spherical Bearing Module

Unlike the factory rubber bushed GT3 inner control arms, our spherical bearings do not deflect under load.
They are fully weather sealed to keep out water and grit for extended life.

• Use in combination with factory GT3 street type control arm only
• Does not fit 991 GT3 or GT4 arms
• Easy Bolt-On
• Weather-sealed
• Sold as pair
• Front and Rear for 996, 997, 986, 987, 981, 718
• Front only on 991

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

2180030
2180030
99634144190

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 4 products)
About Control Arms Rear

Rear Control Arms (Coffin Arms) – Stability, Alignment and Rear-End Control

Rear control arms, commonly referred to as coffin arms, are critical suspension components responsible for controlling rear wheel alignment, stability and handling balance. Mounted between the rear hub and chassis, these arms manage camber and toe movement as the suspension compresses and extends, directly affecting traction, tyre wear and overall vehicle confidence.

At Design911, we supply OE replacement and performance rear coffin arms from trusted suspension manufacturers. Whether you are addressing worn factory components or upgrading for fast-road and track use, rear control arms play a vital role in maintaining predictable handling and restoring proper suspension geometry.

What Do Rear Control Arms (Coffin Arms) Do?

Rear control arms locate the rear wheels and guide their movement through suspension travel. Their primary functions include:

  • Maintaining correct rear wheel camber and toe
  • Providing rear-end stability under acceleration and cornering
  • Supporting predictable handling balance
  • Reducing unwanted suspension flex

Because the rear suspension governs traction and stability, worn or flexing coffin arms can significantly affect handling feel and tyre life.

Why Upgrade or Replace Rear Coffin Arms?

Upgrading or replacing rear control arms offers:

  • Restored rear suspension geometry and alignment accuracy
  • Improved traction and stability during cornering
  • Reduced uneven tyre wear
  • Better feedback and control during spirited driving

Performance rear control arms may feature stronger materials, uprated bushes or adjustable geometry, allowing fine-tuning of rear suspension setup for performance driving or track use.

When Should You Replace Rear Control Arms?

Rear coffin arms should be replaced or upgraded when:

  • Suspension bushes are cracked, worn or noisy
  • Rear alignment cannot be set correctly
  • Handling feels unstable or unpredictable
  • Uneven rear tyre wear is present
  • Performing a suspension refresh or performance upgrade

Replacing worn rear control arms helps restore factory handling characteristics and improves overall driving confidence.

At Design911, our rear control arms meet OE or performance standards, supporting both professional servicing and enthusiast upgrades.

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