For a standard Dana 44 with open differentials and a mild lift, tires up to 33 inches in diameter should generally fit without causing any issues. However, if you plan to run larger tires, it is important to carefully consider the following:
- Axle strength: Dana 44 axles have different levels of strength depending on their design and construction. Some Dana 44 axles are designed for light-duty use, while others are built for heavy-duty applications. Check the specifications of your Dana 44 to ensure it can support the weight and torque of larger tires.
- Gear ratio: The gear ratio of your Dana 44 can affect how well it performs with larger tires. Lower gear ratios provide more torque but sacrifice top speed, while higher gear ratios offer better high-speed performance but may reduce torque. Consider your intended use and driving style when selecting a gear ratio that is compatible with larger tires.
- Driveline components: Running larger tires can put additional strain on the driveline components, including the driveshaft, U-joints, and wheel bearings. Ensure that these components are in good condition and rated to handle the increased stress.
- Suspension and steering: Larger tires can also impact the suspension and steering systems. Upgrading the suspension with stronger components, such as heavier-duty springs and shocks, may be necessary to support the weight and altered dynamics of the vehicle. Additionally, modifications to the steering system may be required to ensure proper handling and control.
- Final drive ratio: Consider the combination of the tire size, axle gear ratio, and the transmission’s gear ratio. The final drive ratio affects the torque and speed characteristics of the vehicle, and it needs to be appropriate for the intended use and terrain.
It's important to consult with a professional mechanic or off-road specialist if you have any doubts about the suitability of specific tire sizes for your Dana 44 axle. They can assess your vehicle, consider all the relevant factors, and recommend the best tire size that will maintain safety, performance, and longevity of your vehicle's driveline components.
