Ranger (GM) Ranger B (II)

Differential fluid capacity & service interval

Ranger (GM) Ranger B (II) uses differential fluid with a capacity of 1,2 liters. Service intervals occur every 10000 km or 6 months. The data covers 6 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
  • 2800 GTS (1974-1978)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Check 10000 km/ 6 months
  • 1700 (1972-1978)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Check 10000 km/ 6 months
  • 1700S (1972-1978)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Check 10000 km/ 6 months
  • 1900 (1972-1978)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Check 10000 km/ 6 months
  • 2500 (1972-1978)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Check 10000 km/ 6 months
  • 2500 GTS (1972-1974)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Check 10000 km/ 6 months

Additional Notes

  • All six variants of the GM Ranger B (II) share an identical rear differential fluid capacity of 1.2 liters, indicating a consistently sized axle housing across the 1700, 1700S, 1900, 2500, 2500 GTS, and 2800 GTS engine configurations.
  • A 1.2-liter capacity is typical of a compact rear differential unit, reflecting a service fill volume rather than a full overhaul or dry-fill figure, which would generally be higher to account for residual fluid in passages and bearings.
  • The check interval of 10,000 km or 6 months, whichever comes first, applies under normal use conditions across all listed variants. The dual-trigger format means the time-based threshold of 6 months can prompt a check even when the distance threshold has not been reached.
  • The 1972-1978 production span covers all six variants, though the 2500 GTS is specified only for 1972-1974, while the 2800 GTS begins in 1974, suggesting a model transition at that midpoint within the broader range.
  • Despite the difference in engine displacement across variants, ranging from the 1700 to the 2800 GTS, the rear differential capacity and check interval remain uniform, pointing to a shared drivetrain architecture at the axle level.

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