Best Suspension Upgrades for HR Holden
The HR Holden occupies a special place in Australian motoring history. Released in 1966, it brought significant improvements over the HD, including revised styling, front disc brake availability and one of the most important suspension developments ever seen in a Holden. The HR front suspension became so successful that it remains one of the most commonly transplanted front ends in early Holden builds today.
Even so, nearly sixty years have passed since the first HR rolled off the production line. Suspension components wear out, rubber bushes deteriorate and original shock absorbers lose effectiveness. While a factory-standard HR still delivers a surprisingly comfortable ride, modern suspension upgrades can dramatically improve handling, ride quality, braking stability and driver confidence.
Whether you’re restoring a stock HR Special, building a weekend cruiser or creating a modified Red Motor-powered street machine, these are the suspension upgrades that provide the greatest improvements.
Why Upgrade the HR Suspension?
Many owners don’t realise how much suspension performance has deteriorated over decades of use.
Common Symptoms
- Excessive body roll
- Wandering steering
- Front-end dive under braking
- Uneven tyre wear
- Harsh ride quality
- Suspension noise
In many cases, owners become accustomed to these behaviours and assume they are normal.
A properly rebuilt HR suspension system feels dramatically different.
Upgrade #1: Replace All Suspension Bushes
Rubber bushes are among the most overlooked suspension components.
Why Bushes Matter
Bushes control movement between suspension components while absorbing vibration.
As they age they become:
- Soft
- Cracked
- Oil-soaked
- Distorted
This creates vague handling and poor steering response.
Best Suspension Bush Kit
Recommended Product: Nolathane Suspension Bush Kit
Benefits
- Improved steering precision
- Reduced suspension movement
- Long service life
- Better cornering stability
Best For
- Street cars
- Touring vehicles
- Mild performance builds
Nolathane products have become extremely popular among Holden enthusiasts.
Upgrade #2: Modern Shock Absorbers
Shock absorbers are one of the biggest contributors to ride quality.
Symptoms of Worn Shocks
- Bouncy ride
- Poor cornering
- Excessive body movement
- Reduced braking stability
Many original shocks are now decades beyond their intended lifespan.
Best Shock Absorber Upgrade
Recommended Product: KYB Excel-G Shock Absorbers
Benefits
- Improved control
- Better ride quality
- Increased stability
- Excellent reliability
Best For
- Daily drivers
- Touring cars
- Restorations
KYB shocks offer one of the best value-for-money upgrades available.
Upgrade #3: Heavy Duty Coil Springs
Factory springs gradually sag over time.
Symptoms
- Uneven ride height
- Bottoming out
- Excessive body roll
Benefits of New Springs
- Restored ride height
- Improved handling
- Better suspension geometry
Best Coil Spring Upgrade
Recommended Product: King Springs
Benefits
- Australian-made
- Improved ride control
- Various ride height options
Best For
- Stock restorations
- Lowered street cars
- Touring vehicles
King Springs are among the most widely used suspension upgrades for classic Holdens.
Upgrade #4: Front Sway Bar Upgrade
The HR Holden already handles well for its age, but body roll remains noticeable compared with modern vehicles.
Benefits of a Larger Sway Bar
- Flatter cornering
- Improved steering response
- Reduced body roll
- Better driver confidence
Best For
- Spirited driving
- Modified vehicles
- Highway touring
Best Sway Bar Upgrade
Recommended Product: Nolathane Heavy Duty Sway Bar Kit
Benefits
- Improved handling
- Better cornering performance
- Reduced body lean
Best For
- Performance-oriented builds
- Long-distance touring
Upgrade #5: Steering Linkage Refresh
Although technically part of the steering system, linkage wear directly affects suspension performance.
Common Worn Components
- Tie rod ends
- Idler arm
- Drag link
- Steering coupling
Symptoms
- Wandering
- Free play
- Poor tracking
Many HR Holdens benefit significantly from a complete steering rebuild.
Best Steering Refresh Kit
Recommended Product: Rare Spares Steering Rebuild Kit
Benefits
- Factory-style replacement
- Improved steering feel
- Better safety
Best For
- Restorations
- Daily drivers
Upgrade #6: Disc Brake-Compatible Suspension Improvements
Many HR Holdens are fitted with factory front discs or upgraded braking systems.
Improved braking places greater demands on suspension components.
Recommended Upgrades
- Heavy-duty shocks
- New bushes
- Sway bar upgrade
- Wheel alignment
The combination dramatically improves braking stability.
Upgrade #7: Rear Leaf Spring Upgrades
Rear suspension performance is often overlooked.
Common Problems
- Sagging springs
- Rear-end instability
- Poor load carrying
Benefits of Replacement Springs
- Improved ride height
- Better handling
- Enhanced towing capability
Best Rear Spring Upgrade
Recommended Product: King Springs Rear Leaf Springs
Benefits
- Improved support
- Better ride control
- Long service life
Best For
- Touring vehicles
- Modified Holdens
- Vehicles carrying additional weight
Upgrade #8: Polyurethane Spring Eye Bushes
Rear spring eye bushes are commonly worn.
Benefits
- Improved stability
- Reduced axle movement
- Better cornering control
Best For
- Suspension rebuilds
- Performance applications
These upgrades are inexpensive but highly effective.
Upgrade #9: Wheel and Tyre Package Improvements
Suspension performance depends heavily on tyre quality.
Benefits of Modern Tyres
- Increased grip
- Better braking
- Improved steering response
Even a fully rebuilt suspension system cannot perform well with poor tyres.
Best Tyre Choice for HR Holdens
Popular options include:
- Bridgestone Ecopia
- Michelin Energy Saver
- Maxxis classic fitment ranges
Choose sizes appropriate for your suspension setup and intended use.
Upgrade #10: Complete Suspension Rebuild
Sometimes the best upgrade is simply restoring the system properly.
Typical Components
- Bushes
- Ball joints
- Shocks
- Springs
- Steering linkage
Result
Many owners report that a fully rebuilt suspension transforms the vehicle more than any engine modification.
Common Suspension Upgrade Mistakes
Lowering Without Upgrading Shocks
Lowering springs alone often create poor ride quality.
Ignoring Steering Components
Suspension and steering work together.
Mixing Old and New Components
Replacing only one worn component often limits overall improvement.
Skipping Wheel Alignment
Alignment should always follow suspension work.
Recommended Upgrade Packages
Budget Upgrade
- New shocks
- Wheel alignment
- Suspension inspection
Result
Noticeably improved ride quality.
Street Cruiser Package
- KYB shocks
- King Springs
- Nolathane bushes
Result
Excellent balance of comfort and handling.
Performance Package
- Heavy-duty sway bar
- Polyurethane bushes
- King Springs
- KYB shocks
- Steering rebuild
Result
Transforms the handling characteristics of the HR Holden.
Final Thoughts
The HR Holden was one of the best-handling Australian cars of its era, but even the most carefully maintained examples benefit enormously from modern suspension upgrades. Replacing worn bushes, fitting quality shock absorbers, refreshing steering components and upgrading springs can dramatically improve comfort, safety and driving enjoyment.
Products such as Nolathane bush kits, KYB shock absorbers, King Springs and Rare Spares steering components have become proven favourites among Holden enthusiasts. Whether you’re restoring a factory-original HR Special or building a modified street machine, suspension upgrades provide some of the best value improvements available.
After all, there’s little point adding more power to a classic Holden if the suspension can’t make the most of it.
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