Description
Overview:
The Coil Spring Assister, 39-51 mm Gap, Rubber Insert (MPN 763 757), is a moulded rubber block designed to sit between the coils of an existing suspension spring to provide additional support under load. It is typically used on cars, estates, SUVs and light commercial vehicles with coil-sprung rear axles to help control rear-end sag when towing a caravan or trailer, or when carrying tools, plant or other payloads. The stated 39-51 mm size refers to the approximate free gap between adjacent spring coils into which the assister is fitted; this range equates to about 1.54-2.01 inches. By reducing excessive spring compression, the assister helps maintain ride height, improves stability and reduces the likelihood of bottoming out. Installation is non-permanent and does not require drilling; the insert is positioned between the coils at a suitable point on the spring and can be removed when not required.
Key Features:
- Suits coil spring gaps of 39-51 mm (approximately 1.54-2.01 inches)
- Moulded rubber insert for supplementary spring support
- Helps reduce rear suspension sag under tow or payload
- Non-permanent fitment; installs between existing spring coils
- Aids stability and reduces bottoming on uneven roads
- Suitable for coil-sprung passenger cars, estates, SUVs and light vans
- Can be removed when not required for seasonal towing or variable loads
- No drilling or welding required for installation
Typical Applications:
Used on vehicles with coil-sprung suspension where occasional load support is required, such as when towing caravans, general-purpose trailers or small plant trailers, or when carrying tools and equipment. Commonly fitted to the rear springs of cars, estates, SUVs and light commercial vehicles to help maintain ride height and stability during towing or laden operation.
Also known as:
Coil spring booster
Rubber spring spacer
Suspension coil insert
Spring assister (Grayston type)
Towing spring aid
Product Specifications
| L&S Part No. | 763 757 |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |
