1. What is the Marlin Crawler Gear Ratio?

The Marlin Crawler Gear Ratio calculates the final crawl ratio of a vehicle by multiplying the transmission ratio, transfer case ratio, and axle ratio. This helps off-road enthusiasts determine their vehicle's low-speed crawling capability.

2. How Does the Calculator Work?

The calculator uses the gear ratio formula:

Where:

• \( \text{transmission ratio} \) — Gear reduction in transmission (dimensionless)
• \( \text{transfer ratio} \) — Gear reduction in transfer case (dimensionless)
• \( \text{axle ratio} \) — Final drive ratio in differential (dimensionless)

Explanation: The equation multiplies all gear reduction ratios together to get the total reduction from engine to wheels.

3. Importance of Gear Ratio Calculation

Details: A proper crawl ratio is essential for off-road performance, allowing slow, controlled movement over obstacles without stalling.

4. Using the Calculator

Tips: Enter all three ratios as positive numbers. Typical values range from 1.0 to 10.0 for each component ratio.

5. Frequently Asked Questions (FAQ)

Q1: What's a good crawl ratio for rock crawling?
A: Generally, 50:1 or lower is preferred for technical rock crawling, while 100:1 or lower is ideal for extreme crawling.

Q2: How does tire size affect crawl ratio?
A: Larger tires effectively increase the final ratio, requiring lower gearing to maintain the same crawling performance.

Q3: Where can I find my vehicle's gear ratios?
A: Check your vehicle's service manual or manufacturer specifications for transmission, transfer case, and axle ratios.

Q4: Can I use this for automatic transmissions?
A: Yes, but remember that torque converters affect actual crawling performance beyond just gear ratios.

Q5: What's the difference between crawl ratio and overall gear ratio?
A: Crawl ratio specifically refers to the lowest available gear combination, while overall gear ratio can refer to any gear selection.