Description
The Terrafirma TF859 Heavy Duty 24-Spline Drive Flange Set is a serious upgrade over factory flanges, built to handle high torque, heavy loads, and tough off-road use. Made from high-strength steel with increased spline engagement, these flanges are engineered to resist wear and spline damage far better than OEM units.
Each flange includes a threaded steel dust cap with an O-ring seal, keeping mud, water, and debris out of your axle ends.
Fitment Notes – Important:
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Designed for 24-spline axles.
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These flanges only work with steel wheels.
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If you want to use them with alloy wheels, you must install Terrafirma TF301 wheel spacers.
Compatible Models (with steel wheels):
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Discovery I (1994–1999, D1)
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Range Rover Classic (1990–1995, RRC)
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Defender Classic
These are Terrafirma upgrades, not OEM. They provide maximum strength and longevity, making them ideal for off-road builds and vehicles running oversized tires.
Supersession Part Numbers
Terrafirma TF859 replaces factory drive flange number RUC105200
Frequently Asked Questions (FAQs)
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Will these fit alloy wheels on my Discovery I?
Not directly. These flanges only fit steel wheels. To use them with alloy wheels, install Terrafirma TF301 spacers. -
Are these stronger than OEM?
Yes—Terrafirma designed these flanges with greater spline contact and thicker construction, making them more durable than stock parts.
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