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Torsion Bar

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DISPLAYING 1 to 8 (of 8 products)
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64433313101
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Rear torsion bar outer rubber bushing.

Fits:
Porsche 356 BT5-T6
Porsche 356 C

Diagram ref no 36

Price is for each.

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64433313101
64433313101

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64433313101/1
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Rear torsion bar outer rubber bushing
This OE match rubber bushing is a direct replacement for the original Porsche component used in the rear torsion bar suspension system of 356 models. Installed at the outer section of the torsion bar tube, it supports the spring plate while isolating vibrations and maintaining correct suspension alignment.
Sold individually, 2 required per vehicle

Fits:
Porsche 356 BT5-T6
Porsche 356 C

Diagram ref no 36

This bushing cushions the connection between the torsion bar spring plate and the chassis. It absorbs road vibrations and reduces metal-to-metal contact, helping maintain smooth suspension movement and ride comfort while preserving alignment.

Function
•  Cushions and supports the rear spring plate at the torsion housing
•  Absorbs vibration and road shock
•  Maintains correct suspension alignment and geometry
•  Prevents metal-to-metal contact within the suspension system
•  Allows controlled torsion bar movement

Over time, rubber bushings degrade due to age, heat, and exposure to the elements. Worn bushings can cause excessive play, poor alignment, and increased vibration, negatively affecting ride quality and handling. Replacing them restores proper suspension function, improves comfort, and protects surrounding components.

When to replace
  Visible cracking, splitting, or hardening of rubber
  Excessive rear suspension play or noise
  Uneven ride height or alignment issues
  During suspension rebuild or restoration
•  Signs of deterioration due to age or contamination

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64433313101
64433313101

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64433315102
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Torsion bar cover without hole, black.

dansk

Fits:
Porsche 356B T6 / 356C 1.6L 09/1961-12/1965

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64433315102
113511225
511201001
64433315102
64433715102
8152250206

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69533315101
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Torsion bar cover without hole, closed.
porsche

Fits:
Porsche 356 C

Click 'Zoom in' for large parts diagram.
Diagram ref no 38

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69533315101
69533315101
69533315100

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69533315101/1
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Product Information
Torsion bar cover without hole, closed.

oematch

Fits:
Porsche 356 C

Click 'Zoom in' for large parts diagram.
Diagram ref no 38

Related reference numbers
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69533315101
69533315101
69533315100

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64433313100/1
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Torsion bar rubber sleeve INNER without rim . Rear axle.

Outer dia: 69mm
Inner dia: 48mm
Thickness: 31mm

Fits:
Porsche 356 pre-A / A  1950-1959
Porsche 356 B / C 1960-1965 (chassis >>131 720, >>154 229, >>88 663)

Porsche 911/912 1965-1967 (up to chassis #307325)

For 356 Pre-A, A, and B, 4 are required w/original covers, and 2 are required w/replacement covers. For all 356C models, 2 are required).

Diagram ref no 36

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64433313100
64433313100

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64441204
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Torsion bolt stop.
porsche

Fits:
Porsche 356 A / B / C 1950-65

Click 'Zoom in' for large parts diagram.
Diagram ref no 20

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64441204
64441204

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64441204/1
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Torsion bolt stop.

oematch

Fits:
Porsche 356 A / B / C 1950-65

Click 'Zoom in' for large parts diagram.
Diagram ref no 20

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64441204
64441204

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DISPLAYING 1 to 8 (of 8 products)
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About Torsion Bar

Porsche Torsion Bars | Design911 Suspension Components for Ride Height, Balance & Handling Precision

Torsion bars are an integral part of Porsche’s classic suspension design, providing spring resistance that supports the vehicle’s weight and absorbs road irregularities. Acting as the main spring element, they twist under load to control suspension movement and maintain ride height. Properly functioning torsion bars ensure balanced handling, consistent alignment, and the smooth, composed driving feel that defines Porsche engineering.

At Design911, we offer a wide range of torsion bars for both front and rear suspension setups. Each component is precision-engineered from high-tensile spring steel or performance-grade materials to provide durability, accuracy, and consistent performance. Whether for restoration, suspension servicing, or performance tuning, our torsion bars help restore and enhance your Porsche’s suspension dynamics.

What Do Torsion Bars Do?

Torsion bars act as load-bearing springs within the suspension system. When the wheels move up and down, the bars twist along their axis to absorb impact and maintain control.

Core Functions:
• Provide spring resistance to support vehicle weight.
• Maintain correct ride height and chassis balance.
• Control suspension compression and rebound during driving.
• Distribute load evenly for predictable handling.
• Enable fine-tuning of suspension stiffness and ride comfort.

With well-calibrated torsion bars, your Porsche delivers improved grip, stability, and cornering precision — both on the road and track.

Why Do Torsion Bars Fail or Degrade?

Over time, torsion bars endure extreme twisting forces, environmental exposure, and wear, which can reduce their effectiveness and strength.

Common Causes of Failure Include:
• Metal fatigue from repeated flexing and torsional stress.
• Corrosion or pitting weakening the bar’s surface.
• Cracks developing from overloading or impact.
• Incorrect ride height adjustments causing uneven stress.
• Aging bushings and mounts reducing alignment accuracy.

When torsion bars wear or crack, symptoms include uneven ride height, unstable handling, and unpredictable suspension response — all clear signs replacement is required.

Why Replace or Upgrade Your Porsche Torsion Bars?

Replacing tired or damaged torsion bars restores suspension strength, ride height accuracy, and overall handling precision. Performance torsion bars can also improve chassis stiffness for track use or spirited driving.

Key Benefits:
• Restores proper suspension balance and ride height.
• Improves cornering stability and handling predictability.
• Reduces body roll and uneven weight distribution.
• Available in standard and performance-rated diameters.
• Fits Porsche 911, 912, 914, 924, 944, and classic models.
• Perfect for restorations, tuning, or performance upgrades.

Design911’s Porsche torsion bars combine superior material quality with exact fitment — ensuring your suspension remains stable, balanced, and ready for precision driving.

Highlights

• Premium Porsche torsion bars and suspension components.
• Precision-machined from high-tensile spring steel.
• Restores suspension stiffness, balance, and ride height.
• Available in road, sport, or track specifications.
• Compatible with classic and performance Porsche models.
• Ideal for restoration, maintenance, or suspension tuning.

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