The Toyota Land Cruiser 50 Series (1967–1980), commonly known as the “Iron Pig,” was Toyota’s first station wagon-style Land Cruiser. Built for both off-road capability and increased passenger comfort, the 50 Series shares many core mechanical components with the 40 Series, including its wheel fitment fundamentals.
This makes tyre and wheel upgrades straightforward, especially for Australian touring and off-road setups.
Factory Wheel & Tyre Specifications
OEM Tyre Sizes
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7.00-15
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7.50-16 (most common factory fitment)
Modern Equivalent Tyre Sizes
For current availability and improved performance:
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235/75R15
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235/85R16 (most popular upgrade)
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245/75R16
These sizes maintain overall rolling diameter while improving grip and ride comfort.
Factory Rim Specifications
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Rim Size:
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15x5.5 (early models)
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16x5.5 – 16x6 (later models)
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Wheel Type: Steel
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Offset: Approx. 0 mm
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Stud Pattern (PCD): 6x139.7 mm
The 6x139.7 PCD is standard across Land Cruiser models, allowing compatibility with a wide range of aftermarket wheels.
Centre Bore (CB)
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Centre Bore: ~110 mm
Like other early Land Cruisers, the 50 Series is lug-centric, meaning:
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Wheel nuts carry the load
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Centre bore is less critical, but still important for proper alignment
Wheel Nut / Stud Specifications
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Thread Size: M12 x 1.5
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Seat Type: Conical
Torque Specifications
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Wheel Nut Torque:
90–110 Nm
Recommendations:
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Re-torque after 50–100 km
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Check stud condition regularly (especially on older vehicles)
Fitment Notes & Upgrade Guide
Most Popular Setup (Australia)
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Wheel: 16x7
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Tyre: 235/85R16 All Terrain
This setup provides:
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Better tyre availability
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Improved off-road traction
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No major modifications required
Touring / Overland Setup
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265/75R16
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Mild suspension lift recommended
Aggressive Off-Road Setup
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285/75R16
Requires:
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Lift kit
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Guard trimming
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Offset adjustment
Key Fitment Considerations
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Steering clearance
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Brake upgrades (disc conversions common)
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Load rating for touring setups
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Guard clearance
A neutral offset (ET0) is recommended to maintain correct handling and clearance.
Recommended Tyre Options (Australia)
For Land Cruiser 50 Series builds:
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All Terrain (AT) – best all-round use
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Mud Terrain (MT) – serious off-road
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Highway Terrain (HT) – restorations
Browse available tyres:
https://autostw.com.au/search?type=product&q=235/85R16
Common Customer Questions (FAQ)
What is the best tyre size for Land Cruiser 50 Series?
235/85R16 is the most widely used upgrade in Australia.
Can I use 15-inch wheels?
Yes, but 16-inch wheels are preferred due to better tyre availability.
Are alloy wheels suitable?
Yes, provided:
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Correct PCD (6x139.7)
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Suitable load rating
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Proper offset
Do I need hub rings?
Not required, but can improve highway stability.
Should I upgrade from split rims?
Yes — modern one-piece wheels are safer and easier to maintain.
Why Choose Autosport Tyreworld?
Autosport Tyreworld provides expert fitment solutions for both classic and modern 4WDs:
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Accurate tyre and wheel recommendations
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Off-road and touring setup expertise
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Competitive pricing
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Fast professional installation
Our Locations
647 Magill Road, Magill SA 5072
PH: 0452 641 023
411 Grand Junction Road, Wingfield SA 5013
PH: 0433 645 411
911 South Road, Clarence Gardens SA 5039
PH: 0420 299 911