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Control Arms Rear

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DISPLAYING 1 to 10 (of 10 products)
MB11KIT
Product Information
Product Information
Monoball Sealed 2 X front suspension top mounts & 2 X rear trailing arm mounts

rennline

SET OF 4

Fits:
Porsche 911/912/930 All 1966-89 Front and Rear

Looking for the ultimate in strut mounts? Rennline Front and Rear Monoball Kit combines both our front strut top monoball and rear trailing arm monoball bushings into a single package to give you a simple solution to massivly improve the handling of your 911. This kit combines our part numbers MB11 and MB12 which includes front strut tops and rear trailing arm monoball mounts. CNC machined and assembeled in house right here in the USA all monoballs feature the highest quality teflon lined motorsports spherical bearings, and precision machined housings. Proven on the street and the track, these will ensure optimal suspension geometry through the suspension's entire range of motion. Includes 2x front and 2x rear trailing arm monoball mounts.

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Related, superseded, cross reference or alternative numbers for comparison.

MB11KIT
91134101800
90134101801
90133105900

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Special Offer
MB1230
Product Information
Product Information
Rennline Mono ball (Fast road & track) Front Control Arm Bushing (Rear Position)
One kit includes 2 bushings, (1 car set)

Fit:
Porsche 911/912/930 All - 1969-89
Special Offer
2020903
Product Information
Product Information
Split bushing removal tool. 1 req'd per lifetime.

elephantracing

Fits:
Porsche 911 / 912 / 930 1965-89
Porsche 964 / 993 1989-98
Porsche 944 / 968 / 924 1976-95 w/ aluminium control arms

Easily removes the following bushings:
• 911 / 930 / 912 trailing arm bushing
• 964 / 993 front lower control arm rear bushing
• 944 front lower control arm front bushing (aluminium arms)

It used to be a difficult task

This clever tool is a real time saver that makes easy work of removing split bushings. Doing the job with the arms still on the car for 911, 964, and 993 saves time and labor.

Split bushings are actually two separate bushings, each pressed in from opposite sides of the arm. Removing them requires driving them out from the parting line where they meet, in the center of the arm. This has traditionally been a difficult job that requires removing the arm and fumbling with a punch to try and drive out the bushings from the center.

Easy & quick
This tool makes it easy to engage the parting line and drive out the bushing. It is so easy that the job can be performed without removing the arm from the 911, 964, and 993.

Pro Mechanics and DIY'ers alike will appreciate the time saving this tool provides.

Combine with bushing installation tools part #2020904 to complete the job.

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2020903
2020903

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PFR57-412-18H
Product Information
Product Information
Powerflex Heritage Collection Stabilizer Bar Bush Rear.
Stabilizer Bar Bush Rear - 18mm.
Drop Link Bush Rear - 18mm.
Fits - left and right side.

powerflexh

SET OF 4

Replacement for Porsche parts No. 91133379302

Fits:
Porsche 911 1974-77 Rear
Porsche 911 Turbo 1975-77
Porsche 914 1970-76 Rear

Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.


Powerflex Heritage Collection. For Modern Day Classics.

A range of bushes engineered for the road to compliment your classic car.

POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.

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

PFR57-412-18H
91133379302
PFR57-412-18
PFR5741218
PFR57412-18

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Special Offer
2020904
Product Information
Product Information
Trailing arm bushing installation tool. 1 req'd per lifetime.

elephantracing

Fits:
Porsche 911/912/930 1965-89

This tool allows installation of the trailing arm bushing without removing the arms from the car, and without a shop press. Can be used for installation rubber bushings as well as our Monoball Cartridges (hyperlink).

Recommended for use in combination with Split Bushing Removal Tool part #2020903

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

2020904
2020904
90133105900

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Special Offer
PFR57-410H
Product Information
Product Information
Trailing arm inner bush.
SET OF 4 for TWO Arms.
OEM Part Number: 90133105900

powerflexh

Fits:
Porsche 911 1970-89

Click 'Zoom in' for large parts diagram.
Diagram Ref No 3


Powerflex Heritage Collection. For Modern Day Classics.

A range of bushes engineered for the road to compliment your classic car.

POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.

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

PFR57-410H
90133105900
PFF57-410
PFF57410
PFF57-410H

The product you are viewing cross references to these numbers
2020901
Product Information
Product Information
Trailing arm monoball cartridges.
PAIR, 1 pair required per car

elephantracing

Fits:
Porsche 911/912/930/914 1965-89

Performance
Today's sticky tire compounds generate corner loads that easily compress factory rubber bushings causing wandering alignment settings. The result is that camber and toe change unpredictably, making steering imprecise and the car difficult to drive fast.

Monoball Cartridges replace compliant factory rubber bushings with hardened-steel spherical bearings. Unlike poly bushings that bind and resist movement, true spherical bearings allow free motion on multiple axis.

• Precise, razor sharp handling
• Holds alignment settings true
• Weather-Sealed for long life
• Eliminates camber loss due to compression
• Extremely low friction

Weather Seals

Our proprietary-design Monoball cartridges have optional weather seals to keep dirt out and extend product life.

This is the only Monoball suitable for street or extended track use. Dirt and water contaminate ordinary products and accelerate wear.

Fitment

Front monoballs fit easily into the stock camber plates of 67-89 911/912/930 cars (911 341 018 00). Cars with pre-67 camber plates are recommended to switch to a 67-89 camber plate for fitment. 65 cars without camber plates require grinding to enlarge the strut top opening to allow fitment of the cartridges.

Easy Bushing Replacement How-To

Your existing bushings are pressed in place, they will need to be pressed out, and you will need to press in the new bushings but it's really easy when you have the right tools. To ease and speed the bushing removal and installation process without using a shop press please see our purpose designed Split Bushing Removal Tool and our Bushing Installation tool.

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

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

2020901
90133105900

The product you are viewing cross references to these numbers
Special Offer
PFR57-410
Product Information
Product Information
Powerflex PFF57-410 Trailing Arm Top Silencer Block.
SET OF 4 for 2 Arms.
OEM Part Number: 90133105900

powerflex

Fits:
Porsche 911 1970-89

Click 'Zoom in' for large parts diagram.
Diagram Ref No 3

Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:

- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsitive steering
- Longer service life of suspension components.

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

PFR57-410
90133105900
PFF57-410
PFF57410

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Special Offer
PFR57-410BLK
Product Information
Product Information
Powerflex Black Series Trailing Arm Top Silencer Block.
SET OF 4 for TWO Arms.
OEM Part Number: 90133105900

powerflexblk

Fits:
Porsche 911 1970-89

Click 'Zoom in' for large parts diagram.
Diagram Ref No 3

Powerflex Black Series - Designed for the Track - Ready to Race - Engineered to be the best.

Powerflex Black Series bushes are manufactured using a 95 Shore A compound to provide maximum control of chassis geometry. This compound can be up to 80% more resistant to load than standard rubber and 25% stiffer than our purple performance material.

If your requirements are purely for the ultimate in handling and chassis performance then Powerflex Black Series are unique, offering the most precise and accurate alignment for your chassis.

Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:

- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsitive steering
- Longer service life of suspension components.

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

PFR57-410BLK
90133105900
PFF57-410
PFF57410

The product you are viewing cross references to these numbers
Special Offer
SPF0988K
Product Information
Product Information
SuperPro Trailing Arm Top Silencer Block.
Replacement for Porsche parts No. 90133105900
SET OF 4

superpro

Fits:
Porsche 911 1970-89
Porsche 912
Porsche 911 SWB

Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:

- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components.

Click 'Zoom in' for large parts diagram.
Diagram Ref No 3

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

SPF0988K
90133105900

The product you are viewing cross references to these numbers
DISPLAYING 1 to 10 (of 10 products)
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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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