What is the diff ratio of the FJ Cruiser?
The FJ Cruiser’s final-drive ratio is 4.10:1.
In practical terms, that ratio describes how many times the driveshaft must turn to rotate the wheels once, shaping highway engine RPMs, towing ability, and off‑road torque. For the FJ Cruiser, most 4x4 models (built roughly from 2007 through 2014) use a 4.10:1 final-drive ratio on the rear differential, with the front axle engaged through the transfer case when 4WD is selected. Two-wheel-drive variants use the same rear-axle gearing but do not engage a front differential in normal driving. Exact figures can vary by market or trim, so it’s best to verify with the vehicle’s axle tag or VIN data.
Model coverage and verification
Here is a concise guide to how this ratio appears across configurations and how to confirm it for a specific FJ Cruiser.
- 4x4 FJ Cruiser (most markets, 2007–2014): final-drive ratio is 4.10:1 on the rear differential; the front axle engages in 4WD via the transfer case when you select 4H or 4L.
- 2WD FJ Cruiser (less common in some markets): rear differential final-drive ratio typically 4.10:1, with no front-axle engagement in normal driving.
- Verification: the simplest and most reliable method is to read the axle code from the driver’s door jamb sticker or consult the VIN/build data from Toyota, as regional variants exist.
Knowing the exact ratio helps with tire-size changes, gearing considerations, and off-road planning.
How to verify your vehicle’s axle ratio
Use these steps to confirm the ratio on your vehicle without disassembly.
- Check the driver’s door jamb sticker for the axle code or final-drive number. The data block often lists "Axle" or "Final Drive," and a numeric code that maps to 4.10:1 in Toyota documentation.
- Consult the owner’s manual or a service bulletin for your trim year; Toyota’s official data sheets list the final-drive ratio for each model/market.
- If you have access to service data, locate the rear differential tag or casting number, which sometimes displays the ratio.
- For precise confirmation, you can query a Toyota VIN/build sheet database or have a dealership look up the exact axle configuration for your VIN.
Keep in mind that regional markets (Europe, Asia, the Middle East, etc.) or limited editions may use slight variations; verify for your exact VIN.
Summary
The FJ Cruiser’s standard final-drive ratio is 4.10:1 for typical 4x4 configurations, with 2WD variants using the same rear-axle gearing but without front-axle engagement. Always verify via the door sticker or VIN/build data for your specific vehicle and market.
