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Porsche // 964 (911) (1989-1994) // Any
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- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Auxiliary Support Cross Tube for Cars with Spring Struts
Restore the front suspension structure of your
classic Porsche with this OE Match Auxiliary Support Cross Tube. The cross tube forms part of the front
suspension assembly, providing a strong mounting structure that helps locate
and support suspension components while maintaining correct geometry.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Diagram ref no 1
What Does the Auxiliary Support Cross Tube Do?
The auxiliary support cross tube is mounted across the front underside of the vehicle and forms an important structural part of the suspension system.
Its functions include:
- Supporting front suspension components
- Providing secure suspension mounting points
- Helping maintain correct suspension geometry
- Maintaining structural rigidity across the front suspension
- Supporting accurate steering and suspension operation
Because suspension loads are transferred through this area, the condition and alignment of the cross tube are important for correct handling.
Why Do Auxiliary Support Cross Tubes Fail?
Unlike a normal service component, the cross tube does not have a scheduled replacement interval. Damage is generally caused by age, corrosion, accident damage or previous repairs.
Common problems include:
- Corrosion and rust
- Damage around mounting points
- Distortion caused by accident impact
- Cracks or metal fatigue
- Damage from incorrect jacking or lifting
- Worn or enlarged mounting holes
- Previous poor-quality repairs
- General deterioration on older vehicles
Corrosion is particularly important on early Porsche 911 models, where decades of exposure to moisture and road contamination can weaken suspension mounting areas.
When Should the Cross Tube Be Replaced?
Replacement should be considered if:
- Significant corrosion is present
- Suspension mounting points are damaged
- The cross tube is bent or distorted
- Cracks or structural damage are found
- Suspension geometry cannot be correctly adjusted
- Accident damage has affected the front suspension
- Previous repairs have compromised its strength
- The component is unsuitable for reuse during restoration
Any suspected structural damage should be carefully inspected before the vehicle is returned to the road.
Important Front Suspension Checks
When replacing the auxiliary support cross tube, the surrounding suspension and mounting areas should also be inspected.
Check the spring struts, suspension arms, bushes, ball joints, steering components, mounting hardware and body attachment points for wear, corrosion or damage.
A wheel alignment should be carried out where necessary after suspension components have been replaced or disturbed.
Porsche 911 1969-71 Front Suspension Cross Tubes
Early Porsche 911 suspension components are now several decades old, making corrosion, previous accident damage and general deterioration increasingly common.
The auxiliary support cross tube is an important part of the front suspension structure. Damage or corrosion can affect suspension mounting, alignment and overall front suspension integrity.
During restoration of a 1969, 1970 or 1971 Porsche 911, the cross tube and surrounding suspension mounting areas should be carefully inspected, particularly where corrosion or previous repairs are visible.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134101304
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Fits:
Porsche 964 1989-94 (not RS)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96434101
The product you are viewing cross references to these numbers
- 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
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 964 1989-94
Porsche 993 1994-98
Fits to No 12 on the diagram.
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.
PUBUSHKIT5
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- 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
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 964 1989-94
Porsche 993 1994-98
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
Fits to No 12 on the diagram.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
KIT5263K
The product you are viewing cross references to these numbers
- 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
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 964 1989-94
Porsche 993 1994-98
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
Fits to No 12 on the diagram.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PUBUSHKIT6
The product you are viewing cross references to these numbers
This kit is comprised of the following items: