Transmission Gear Ratio Charts: Standard US & Import Gearboxes
Every automotive transmission features a specific set of gear ratios selected by the manufacturer to balance acceleration, fuel economy, and engine power. These ratios determine the engine's operating RPM at any given speed.
Standard Manual Transmission Charts
Here are standard gear ratio configurations for popular manual transmissions:
- Tremec T56 (6-Speed): 1st: 2.66 | 2nd: 1.78 | 3rd: 1.30 | 4th: 1.00 | 5th: 0.74 | 6th: 0.50
- Getrag 260 (5-Speed): 1st: 3.83 | 2nd: 2.20 | 3rd: 1.40 | 4th: 1.00 | 5th: 0.81
- BorgWarner T5 (5-Speed): 1st: 3.35 | 2nd: 1.99 | 3rd: 1.33 | 4th: 1.00 | 5th: 0.68
"A gear ratio of 1.00 in fourth gear represents a direct drive connection, where the output shaft spins at the exact same speed as the engine."
Calculate your vehicle's speed at different RPMs using our automotive gear ratio calculator. For off-road axle setups, refer to our guide on rear axle off-road sizing.