Rear Sub Frame

HD Complete trailing arm bushing kit. 
Fast road and track 85 Shore rating 

Fits:
Porsche 964

Restore and maintain proper rear suspension geometry by returning your trailing arm play to factory standards with this kit which includes:
- Rubber bushings for two (2) 964 rear trailing arms
- Brand new aluminum bushing center sections

Our new High Density line now offers an alternative to purchasing expensive new rear trailing arms for your 964. This rear kit includes everything you need to remove and replace your original rubber bushings while providing a 25% increase in stiffness.

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Related, superseded, cross reference or alternative numbers for comparison.

96433102100

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HD Complete Trailing Arm Bushing Kit.
Re-establish the precision and integrity of your Porsche 964’s rear suspension with this premium High-Density Complete Trailing Arm Bushing Kit.
Engineered for both street performance and track readiness, the kit includes high-density rubber bushings, aluminium insert centres, specialised press tools and installation lubricant. By upgrading from standard rubber, you’ll achieve significantly reduced arm deflection (≈ 25% stiffer than OEM), restored alignment stability, improved rear-end control and sharper handling. A complete set per car, this kit is indispensable when you’re refreshing your rear suspension or upgrading to performance-level behaviour.

Fits:

• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93

What This Product Does:

• The rear trailing arms are essential suspension components that locate the rear axle/wheel assembly longitudinally and laterally under acceleration, braking and cornering. The bushings at the arms' mounts provide pivotal or semi-rigid interfaces with the chassis/subframe.
• Over time, OEM rubber bushings compress, soften, degrade or allow flex, which leads to movement in the trailing arms. That movement can cause instability, alignment changes, tyre wear, and a loss of rear-end precision.
  
• By installing this HD kit, you tighten up that mounting — the arms stay located exactly where they should under load, geometry is more consistent, compliance is reduced, and the car’s rear suspension behaves more precisely.
• In short: less “slop,” more control. The kit helps maintain proper alignment (camber, toe) under dynamic conditions, improves handling, enhances driver confidence and extends life of related components.

Symptoms & When You Might Need It:

• Clunks or knocking noises from the rear when going over bumps or accelerating — the trailing arm mount may be moving.
• Rear-end instability or “wandering” in corners — the suspension doesn’t feel crisp, the rear moves more than it used to.
• Uneven or accelerated tyre wear on the rear wheels, particularly inner/outer edge — geometry is shifting under load.
• You’ve modified your car (lowering ride height, installing stiffer springs/ARBs, bigger tyres) and the factory bushes are now too soft to maintain control.
  
• On inspection you notice visible wear/deformation: rubber bushings cracked, compressed, arms have play in their mount.
  
  

Why Replacement / Upgrade Matters:

• Ageing bushings compromise alignment, handling and safety. By upgrading you restore rear suspension behaviour to (or above) the original specification.
• The HD kit ensures the trailing arms remain properly located under load — this means your tyres stay planted, your rear geometry remains correct, and your car remains stable at speed.
• Using superior materials (denser rubber / aluminium centres) helps prevent further deflection, reduces stress on adjacent parts (arms, mounts, subframe) and improves longevity.
• Especially important for performance, track use or modified vehicles: these cars demand tighter suspension behaviour, so upgrading bushings is foundational to making the rest of the system work properly.
• Even for standard road use, replacing worn trailing arm bushes is a high-value maintenance item: better ride quality, fewer odd noises, improved resale value.

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

96433102100

The product you are viewing cross references to these numbers

HD Complete trailing arm bushing kit. Including installation tools 
Fast road and track 85 Shore rating 

Fits:
Porsche 964

Restore and maintain proper rear suspension geometry by returning your trailing arm play to factory standards with this kit which includes:
- Rubber bushings for two (2) 964 rear trailing arms
- Brand new aluminum bushing center sections
- Bushing press tool
- Lubricant for a quiet and easy finished installation

Our new High Density line now offers an alternative to purchasing expensive new rear trailing arms for your 964. This rear kit includes everything you need to remove and replace your original rubber bushings while providing a 25% increase in stiffness.

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

96433102100

The product you are viewing cross references to these numbers

Heavy Duty Complete Trailing Arm bushings Kit, Including Installation Tools.
Bring your Porsche’s suspension back to life with the HD Complete Trailing Arm Bushings Kit.
This premium kit replaces worn factory rubber bushings with heavy-duty, high-density (HD) bushings, restoring rear suspension precision and improving handling.
Sold As A Set.
x1 Set Required Per Car (Two Trailing Arms)

Fits:

• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93

Fits On To Diagram Ref No 1

What This Product Does:

• Support & alignment: The trailing arms maintain alignment and control of the rear wheels under acceleration, braking, and load changes.
• Reduction of play: Worn bushings allow movement or “slop” in the arm, degrading handling precision and causing clunks or instability.
  
• Transmission of force: The trailing arm bushing sees load from acceleration, deceleration, and road irregularities, so a firmer bushing transfers forces more consistently.
  
• Improved component longevity: Correctly supported trailing arms reduce stress on adjacent components (arms, mounts, subframe).
  
  

Symptoms Of Worn Trailing Arm Bushings:

• Clunks / knocking noises at the rear, especially over bumps
  
• Rear-end instability or “wandering” under dynamic loads
  
• Uneven or accelerated rear tire wear, from alignment wandering
  
• Vibration or harshness when the rear suspension flexes
  
• Reduced grip or confidence in corners, due to less precise rear control
  
  

Why This Kit / Upgrade Matters:

• Restores precision and geometry — tighter bushings help maintain alignment under load (cornering, braking)
  
• Improves rear-end stability — reduces unwanted deflection improves overall handling confidence
  
• Swaps wear for performance — old rubber often softens with time; upgraded HD compound resists fatigue
  
• Saves cost vs full arms — this kit allows reuse of original arms rather than having to replace with new arms
• Tools included — the kit comes with the necessary press tools and lubricant, making the job easier and more accurate
• Balanced stiffness — with ~25% stiffer than OEM, it offers performance improvement without excessive harshness 

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

96433102100

The product you are viewing cross references to these numbers

Trailing Arm Bushing Kit, Race Version Monoball.
Upgrade your Porsche 964’s rear suspension with this high-performance monoball trailing arm bushing kit. Designed specifically for the rear trailing arms of the 964, this kit replaces traditional rubber bushings with precision spherical bearings, delivering exceptional rigidity, improved feedback and sharper handling response. Ideal for track days, spirited driving or comprehensive chassis refreshes.
Sold As A Set.

Fits:

• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93

Fits On To Diagram Ref No 1

What This Product Does:

• The rear trailing arms are crucial suspension links that control the longitudinal and lateral movement of the wheel and axle under acceleration, braking and cornering. The bushing kit equips those arms with a firmer mount point.
• By replacing softer, compliant bushings with high-density or monoball bearings, the kit significantly reduces unwanted flex, thus helping keep alignment (camber, toe) and suspension geometry more consistent under load.
  
• The monoball design also offers sharper feedback and quicker response because there’s less rubber compliance absorbing movement or introducing play.

Symptoms & Signs You Might Need This Kit:

• Rear end feels loose or vague during hard cornering — you might sense the rear “shifts” or the car doesn’t hold as well as you remember.
• Uneven tyre wear on the rear, particularly inner or outer edge, from geometry changing under load.
• You hear clunks, knocks or feel unusual movement from the rear suspension over bumps.
• The car has been modified (widened tyres, lowered ride height, stiffer springs) and the stock bushings seem too soft or have excessive deflection.
• Upon inspection the original bushings are greatly worn, cracked, or collapsed — especially if you’re using the car for more than just gentle street use.

Why Replacement / Upgrade Matters:

• Using this race-version monoball kit restores control and precision in the rear suspension — especially important for performance or track-oriented use.
• It helps the trailing arms maintain their designed position and geometry, thus improving stability, cornering behaviour and driver confidence.
• Because the monoball is so much firmer than rubber, it reduces suspension “slop” and ensures components behave consistently under dynamic loads.
• Even for non-track use, replacing worn bushings with a higher quality solution can rejuvenate the handling of the car and make it feel fresher.
• For a 964 that’s been modified or simply aging, this kit is a foundational improvement to let the rest of the suspension upgrades work as intended.

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

96433102100

The product you are viewing cross references to these numbers

Trailing arm bushing kit. Race version mono ball Porsche 964 (set of 2) 

Fits: Porsche 964

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

96433102100

The product you are viewing cross references to these numbers