The suspension of the Alfa Romeo 105 series follows a common design and is used in the Giulia, Berlina, GT Bertone and Spider 105/115. At the front there is an independent suspension with double wishbones, at the rear a live axle located by trailing arms and a reaction triangle. As a manufacturer, supplier and spare parts specialist for classic Alfa Romeo models, Alfa-Service carries a wide range of suspension components. Many parts are comparable across the series, while individual versions differ by engine and model year.
Alfa Romeo 105 Suspension at a Glance
The front axle is a double wishbone suspension with coil springs and telescopic dampers. The rear axle is a live axle with coil springs and telescopic dampers, located by trailing arms and a central reaction triangle. In addition there are an anti-roll bar, ball joints and numerous rubber bushes. This basic design is the same across the series, which is why many components fit across models.
Suspension Part Types
The range is divided into the following part types:
- Upper and lower wishbones
- Coil springs front and rear
- Dampers front and rear
- Ball joints and suspension joints
- Rubber bushes, bushings and mounts
- Anti-roll bar and anti-roll bar parts
- Trailing arms, reaction triangle and axle location
- Wheel bearings and associated parts
Shared Across the Series or Model-Dependent
The suspension design is the same across the series, but individual parts depend on engine and model year. For example, the upper wishbones differ in length between 1600 and 1750/2000, because the geometry at the upright differs. Springs and dampers can also vary by model and version. When selecting, model, engine and model year should therefore be observed to ensure the correct geometry.
Model Families
For a model-specific selection, the following categories lead to the model families:
Axles, Bushes and Model Variants
At the front axle, upper and lower wishbones work with rubber bushes and ball joints. In addition there is a caster arm with its own joint, used across the series on coupe, saloon and Spider. The lower suspension ball joint is also of a uniform design for all 105 models. An important difference concerns the upper wishbones: between 1600 and 1750/2000 they differ in length, because the geometry at the upright is different. For such cases, adjustable wishbones are partly available, which allow an adjustment.
At the rear axle, trailing arms and a central reaction triangle locate the live axle. Springing and damping are by coil springs and telescopic dampers at the front and rear; an anti-roll bar complements the front axle. This arrangement is the same across the series, which is why many components such as arm bushes, axle bearings and anti-roll bar bushes fit across models. Individual springs and dampers can differ by model, engine and version, however, because weight and tuning vary.
The suspension components can be divided into clearly defined part types: upper and lower wishbones, coil springs, dampers, ball joints and suspension joints, rubber bushes and bushings, the anti-roll bar and anti-roll bar parts, trailing arms and reaction triangle as well as wheel bearings. Many of these parts are in demand as repair or renewal parts, for example bush rubbers, bushings and joints that are subject to wear. An ordered selection by part type makes it easier to find the right component reliably.
As the Giulia, Berlina, GT Bertone and Spider 105/115 use the same suspension design, a large part of the components is usable across the series. Where there are differences - in particular at the upper wishbones as well as at springs and dampers - model, engine and model year are decisive. Anyone who clarifies these points in advance and, in case of doubt, compares the existing geometry on the vehicle can assign wishbones, springs, dampers, joints and bushes reliably.
When sourcing suspension parts, it helps to treat wear parts and load-bearing components separately. Frequently requested are rubber bushes, bushings, suspension joints and ball joints, which are subject to wear and can be assigned as sets or individually. For the wishbones, the distinction between upper and lower arms and - for the upper arms - between the lengths for 1600 and 1750/2000 is decisive; adjustable wishbones offer an adaptation option here.
Related Assemblies
The following areas are also relevant:
Notes on Part Selection
Decisive are the model, engine (1300, 1600, 1750, 2000) and model year. These mainly determine the upper wishbones as well as individual springs and dampers. Ball joints, bushes and many other parts, by contrast, are largely usable across the series. Checking against the specific vehicle is recommended.
FAQ
How is the 105-series suspension laid out?
Double wishbones at the front, a live axle located by trailing arms and a reaction triangle at the rear, with coil springs and telescopic dampers. The design is the same across the series.
Are suspension parts usable across the series?
Many parts such as ball joints and bushes are comparable. Individual parts such as the upper wishbones differ by engine.
How do 1600 and 1750/2000 differ in the suspension?
The upper wishbones have a different length, because the geometry at the upright differs.
Which components are available?
Among others, wishbones, springs, dampers, ball joints, bushes, the anti-roll bar and axle location parts.
Is Alfa-Service a workshop?
No. Alfa-Service is a manufacturer, supplier and spare parts specialist for classic Alfa Romeo models and does not carry out repairs.
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