Land Rover Series III 2.6 six-cylinder petrol: change front & rear axle oil
Axles · Series III (1971–85) · 1971–1980
How often: every 12,000 mi or year, whichever comes first. Fresh oil protects the crown wheel and pinion, especially after wading.
Differentials
90W or 85W-90 GL-4: Rover type ≈1.7 L (1¾ US qt) each; Salisbury rear ≈2.8 L (3 US qt); ENV rear ≈1.2 L, front ≈1.6 L
Work safely: support the vehicle on axle stands, never a jack alone; let it cool first. Check figures against your workshop manual. You do this work at your own risk.
Parts
Differential oil (90W or 85W-90 GL-4: Rover type ≈1.7 L (1¾ US qt) each; Salisbury rear ≈2.8 L (3 US qt); ENV rear ≈1.2 L, front ≈1.6 L)
2 × Drain plug washers (if needed)
Tools
Spanners
Drain tray
Oil pump
Step by step
Drain both differentials while warm.
Check the drain plugs for metal. A little fine paste is normal; chips are not.
Refill to the level plugs. Check the axle breathers are clear.
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