Ranger (GM) Ranger A
Differential fluid capacity & service interval
Ranger (GM) Ranger A uses differential fluid with a capacity range of 1,16 to 1,25 liters. Service intervals require checks every 10000 km or 6 months. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
|
|
|
|
|
|
|
|
Additional Notes
- The GM Ranger A rear differential capacity splits into two distinct values across the 1970-1972 model range: 1.16 liters for the 1700 and 1900 engine variants, and 1.25 liters for the 2500 and 2500 GTS variants.
- The 0.09-liter difference between the smaller and larger differential capacities reflects a physically larger rear differential housing used in the higher-displacement 2500-series configurations.
- All four variants share an identical check interval of 10,000 km or 6 months, whichever comes first, under normal use conditions.
- The 1.16-liter rear differential capacity applies equally to both the 1700 and 1900 engine variants across the full 1970-1972 production span, indicating a shared differential unit between those two engine displacements.
- The 2500 GTS carries the same 1.25-liter rear differential capacity and 10,000 km / 6-month check interval as the standard 2500, meaning the GTS designation introduced no differential specification changes relative to the base 2500.
- A check interval rather than a drain-and-fill interval is specified for all variants under normal use, meaning the service action at 10,000 km or 6 months is a fluid level inspection rather than a full fluid replacement.