The HD Holden (1965–1966) and HR Holden (1966–1968) are iconic Australian classics that showcase Holden’s evolution in design, comfort, and mechanical refinement. These models are popular among collectors and enthusiasts, and knowing what to inspect before buying is critical to avoid costly mistakes.
1. Body & Rust
HD Holden
- Common rust areas: floor pans, sills, boot floor, rear guards, wheel arches, and door bottoms.
- Inspect bonnet edges, front guards, and A-pillars for corrosion.
- Look for signs of previous repairs, filler work, or mismatched paint.
HR Holden
- Shares similar rust-prone areas as HD.
- Extra attention to rear guards and boot floor, as these are common spots for hidden rust.
- Check door bottoms and chassis rails carefully for corrosion or damage.
2. Engine & Drivetrain
HD Holden
- Engines: 149 Red Motor; optional 179 cu in 6-cylinder for higher-spec models.
- Transmission: 3-speed manual standard; or 2 speed ‘Powerglide’ automatic optional.
- Watch for oil leaks, worn gaskets, valve guide wear, and carburettor issues.
HR Holden
- Engines: 161 Red Motor, improved carburettor, and minor reliability updates. 186 optional
- Transmission: 3-speed manual standard; 2-speed ‘Powerglide’ automatic optional.
- Inspect clutch, gearbox synchros, and timing components for wear.
3. Suspension & Steering
- Both models use front independent coil suspension with rear leaf springs.
- Check shock absorbers, bushings, control arms, and rear leaf springs for wear or sagging.
- Steering box: check for excessive play or leaks; HR models may have slightly improved steering ratios.
4. Brakes
- Drum brakes all around; later HR models have improved braking efficiency.
- Inspect wheel cylinders, brake shoes, and drums for wear or leaks.
- Rebuilding the master cylinder improves safety and reliability.
5. Interior
- Upholstery and carpets may be worn or faded.
- Dash and instruments: check that gauges, switches, and knobs function correctly.
- Original parts, including steering wheels, badges, and trim, add to collectability.
6. Electrical & Lighting
- Check wiring for frays, brittleness or corrosion.
- All lights, indicators, horn, and gauges should be operational.
- Consider LED upgrades for improved safety without affecting originality.
7. Paperwork & Provenance
- Verify VIN and engine numbers; authenticity increases value.
- Look for service history, restoration receipts, and previous ownership documentation.
- Original paint, trim, and badges are significant value drivers.
8. Market Value & Investment
- HD and HR Holdens are highly collectible, with HR models being slightly more desirable due to styling updates and improved mechanical reliability.
- Condition, originality, and provenance are the main drivers of value.
- Fully restored cars command premium prices, particularly in original colour schemes and with matching numbers.