What is the benefit of a progressive spring design?

A progressive spring design means the spring rate changes as it compresses. This allows for a softer initial ride, similar to OEM, while becoming stiffer under load or during hard cornering to improve handling.

Do these springs come with any hardware?

This product includes the set of AST lowering springs. Installation hardware, such as bump stops or spring isolators, is typically reused from the original equipment or may need to be purchased separately.

What is covered by the lifetime warranty?

The lifetime warranty covers the springs against breaking. It ensures that the springs will not fail structurally under normal operating conditions for as long as you own the vehicle.

Specifications

Brand: AST
Part #: ASTLS-14-1583
UPC: ASTLS-14-1583

AST 09/1979-08/1984 Opel Kadett D Lowering Springs - 40mm/40mm

Name: AST 09/1979-08/1984 Opel Kadett D Lowering Springs - 40mm/40mm
Brand: AST
SKU: ast-ast-09-1979-08-1984-opel-kadett-d-lowering-springs-40mm-40mm-t14-708488
Price: 339.72 USD
Availability: BackOrder

$339.72

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

AST 09/1979-08/1984 Opel Kadett D Lowering Springs - 40mm/40mm. Lowers center of gravity while maintaining OEM comfort.

Key Features

Fits 1979-1984 Opel Kadett D.
Lowers vehicle center of gravity by 40mm front and 40mm rear.
Progressive spring design balances ride comfort with improved performance.
Cold-coiled on Wafios coiling machines for consistent quality.
Direct replacement for OEM springs.
Backed by a lifetime warranty against breaking.

These AST lowering springs are designed specifically for the 1979-1984 Opel Kadett D.

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About this part

Product Details

These AST lowering springs are cold-coiled on Wafios machines, a detail that matters for how they perform. They're made to directly replace your Opel Kadett D's original springs, specifically developed for your vehicle. The goal here is to lower your car's center of gravity, which can help with handling, without sacrificing too much of the comfortable ride you're used to from the factory setup.

The progressive design means they offer a good balance. You get a noticeable drop – 40mm front and 40mm rear – which improves the car's stance and can enhance performance, but they're built to absorb road imperfections better than a stiff, linear spring. This makes them a solid option if you want a sportier look and feel without making your Kadett D uncomfortable for daily driving.

AST backs these springs with a lifetime warranty against breaking, so you can install them with confidence. They fit directly onto your 1979-1984 Opel Kadett D, making them a straightforward upgrade for improving your car's handling and appearance.