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Austin Healey Uprated 8-Leaf Rear Spring BN4–BJ8

Big Healey

Part no:

SUR121C

Product name:

Austin Healey Uprated 8-Leaf Rear Spring BN4–BJ8

Additional information:

Description:

Increased Rear Support for Fast Road and Touring

This uprated 8-leaf rear spring is designed for Austin Healey BN4 to early BJ8 models, offering approximately 12% increased stiffness over standard springs. It provides improved load support and more controlled rear suspension behaviour.

Where It Makes a Difference

Reduces rear-end sag under load
Improves stability during cornering
Better support for touring and luggage

Which models does this fit?

Fits BN4, BN6, BN7, BJ7 and early BJ8 (up to chassis 26704).

What’s Included

1 × uprated rear leaf spring

Technical Details

8-leaf construction
Approx. 12% increased stiffness
High-grade spring steel

Installation & Setup

Direct replacement. Increased stiffness may alter ride height slightly. Suspension components should be inspected and adjusted accordingly.

Why Choose Uprated

Suitable for drivers wanting improved rear support without moving to full competition springs.

OE part number:

11B5266

Application:

BN4 - BJ8.26704

Quantity per vehicle:

Items Per Pack:

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Your Price:

£198.05 Exc VAT
£237.66 Inc VAT

Quantity:

Frequently Asked Questions

Can this be fitted to late BJ8 models?

No. This spring is designed for BN4 to early BJ8 models (up to chassis 26704). Late BJ8 models require a different spring.

Do I need to upgrade other suspension components?

It is advisable to check rear shock absorbers and bushings, as worn components can limit the benefit of uprated springs.

Is this suitable for everyday road use?

Yes. It is commonly used for fast road and touring applications where improved support is needed without significantly compromising comfort.

What does “uprated” actually mean for this spring?

This 8-leaf design increases stiffness by approximately 12%, giving better rear support under load and reducing sag during acceleration, cornering, or when carrying passengers and luggage.

Will it change ride height?

It can sit slightly higher under load compared to worn standard springs, particularly when the vehicle is carrying weight.

Will this improve handling compared to a standard spring?

Yes. The additional stiffness helps control rear axle movement, resulting in more stable cornering and a more planted feel without moving into full competition setup.