2016 Ford Explorer: Transmission & Axle Gear Ratios

Transmission Gear Ratios

The 2016 Ford Explorer was offered with a single automatic transmission across its entire lineup, the 6-speed 6F35 or 6F55, depending on the engine. The gear ratios are identical between the two.

6-Speed Automatic (6F35/6F55)

Available Axle Ratios

Ford offered a few different axle ratios for the 2016 Explorer, tailored to either front-wheel-drive (FWD) or all-wheel-drive (AWD) configurations and specific engine choices.

How to Identify Your Axle Ratio

Unlike GM vehicles with a door-jamb RPO sticker, Ford makes it a bit of a treasure hunt. Here’s how you can identify your specific axle ratio:

• Safety Compliance Certification Label: Check the label on your driver-side door jamb. Look for the "AXLE" code. You can then use an online Ford axle code decoder to match the code to your specific ratio.
• Axle Tag: Look for a metal tag bolted to the differential housing on the rear axle (or front differential for FWD models). This tag will have the ratio stamped into it, often as "3 31," "3 55," or "3L55" (the "L" denotes a limited-slip differential).
• VIN Decoder: Several online VIN decoders can provide a build sheet or vehicle specifics, which often includes the factory-installed axle ratio.

Towing vs. MPG Impact

Understanding the trade-offs between axle ratios is crucial for maximizing your Explorer's performance or efficiency.

• Numerically Lower Ratios (e.g., 3.16): These are often called "taller" gears. They lower the engine's RPM at highway speeds, which reduces fuel consumption. This is ideal for drivers who prioritize miles per gallon (MPG) and do mostly highway driving.
• Numerically Higher Ratios (e.g., 3.65): Referred to as "shorter" gears, these multiply the engine's torque more effectively. This provides better off-the-line acceleration and increased towing capacity, as the engine can more easily get the load moving. The trade-off is higher engine RPM on the highway, leading to lower fuel economy.

For the 2016 Explorer, the 3.5L EcoBoost engine paired with the 3.16 ratio provides a solid balance of power and efficiency, while the 3.65 ratio on other AWD models is geared more toward all-weather performance.

Common Issues

The 6F series transmissions are generally reliable, but some earlier models experienced issues with torque converter shudder or harsh shifting, often addressed with a fluid flush or software update. The Power Transfer Unit (PTU) on AWD models can also be a point of concern. The fluid can overheat, leading to seal failure and leaks. Regular fluid changes are recommended to prolong its life. As for the differentials themselves, issues like bearing whine or seal leaks are rare but can occur with high mileage.

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