2025 Ford Ranger — Transmission & Axle Gear Ratios

Transmission gear ratios

2025 Ford Ranger models in North America use a 10‑speed SelectShift automatic across the lineup (including Raptor). The internal gear steps are as follows:

10-speed automatic (Ford 10R-series)

Note: Ford’s 10R60/10R80 variants used in midsize and full-size applications share the same internal ratios; calibration and torque capacity differ by application.

Available axle ratios

For 2025, the U.S.-spec Ranger uses two rear axle final-drive ratios depending on trim. Non‑Raptor trucks typically carry a 3.73:1, while Raptor uses a shorter 4.27:1 to turn its larger tires and support off‑road performance. An electronic locking rear differential (e‑locker) is standard on Raptor and available/packaged on many 4x4 trims.

Because Ford axle codes can change by model year and assembly plant, always confirm the exact code on your truck.

How to identify your axle ratio

• Driver door‑jamb certification label (Ford): Open the driver door and find the white/black Vehicle Certification label. Look for the “AXLE” field. This two‑character code corresponds to the rear axle ratio and whether it’s open, limited‑slip, or electronic‑locking. Cross‑reference the code with the owner’s manual, a Ford dealer, or a reliable axle‑code chart for your model year.
• Axle housing tag: Many Ford axles have a small metal tag bolted to the differential cover or housing. The stamped numbers often include the ratio (for example, “3 73” or “4 27”) and build data. Clean the tag to read it.
• VIN/Window sticker: A full Ford build sheet or original Monroney/window sticker (via Ford’s online resources or a dealer) often lists the axle ratio and whether an electronic locker is equipped.
• Aftermarket scanners/decoders: Some VIN decoders can surface axle data for late‑model Fords; verify against the physical label/tag for accuracy.

Towing vs MPG impact

Final drive ratio has a direct effect on both towing performance and fuel economy:

• Numerically lower ratio (e.g., 3.73 vs 4.27) turns the driveshaft fewer times per wheel revolution. Benefits: lower engine rpm at highway cruise and generally better fuel economy. Tradeoff: less mechanical torque multiplication at the axle, so the truck may downshift more often on grades or with heavy trailers.
• Numerically higher ratio (e.g., 4.27) multiplies torque more at the axle. Benefits: stronger launch, better low‑speed control off‑road, and improved towing performance—especially with larger tires. Tradeoff: higher rpm at a given road speed and typically reduced highway MPG.

The Ranger’s 10‑speed mitigates some of these tradeoffs. With its deep 1st gear (4.696) and three overdrive ratios (8th–10th), a 3.73 truck still tows confidently when equipped with the factory towing package, while a 4.27 Raptor remains livable on the highway despite its off‑road gearing and tires. Tire diameter matters too: larger tires effectively “raise” the gearing (numerically lower), which is one reason the Raptor uses a 4.27 to offset its 33‑inch class tires.

Common issues

No widespread axle failures unique to the 2024–2025 North American Ranger have been documented. A few driveline items to be aware of, based on broader Ford 10‑speed and truck‑axle experience:

• 10‑speed calibration/shift feel: Some owners report harsh 2–3 or 3–4 shifts or a slight shuffle at light throttle. Ford has issued calibration updates and service procedures across multiple 10R‑series applications; a dealer TSB reflash and fluid level verification typically resolves it.
• Gear whine (ring & pinion): Light coast or cruise whine can occur if gear tooth contact pattern is marginal or after aftermarket gear swaps. Proper setup (pinion depth, backlash) and break‑in are key; persistent noise warrants inspection.
• Differential e‑locker: Infrequent, but locker engagement issues can result from wiring/connector faults or contaminated speed/position sensors. Cycling the locker per the owner’s manual and checking harness/connectors often restores function; otherwise a scan for DTCs is recommended.

If you experience vibration, whine, or shift concerns, have the driveline angles, wheel/tire balance, and software calibration checked before replacing parts.

Find a driveline shop on Repairius.