What size front axle is on a Dana 60?
The front axle on a Dana 60 typically uses outer axle shafts that are 1.75 inches in diameter, with most stock configurations featuring 30 splines. Some aftermarket or specific factory variants use 35 splines. To be certain, you should verify the exact spec on your particular vehicle.
The Dana 60 is a heavy‑duty axle platform used in a range of trucks and off-road vehicles, known for its strength and versatility. When people ask about the “size” of the front axle, they are usually referring to the size of the outer axle shafts and the number of splines that engage the differential or hub assemblies. Variants exist, and precise specs can vary by model year, configuration, and aftermarket upgrades.
Common shaft size and spline variants
There are a couple of widely encountered configurations for the front Dana 60, primarily around the outer axle shaft diameter and spline count. The list below captures the typical setups you’re likely to encounter in stock and upgraded builds.
- Outer axle shaft diameter: 1.75 inches (1-3/4").
- Spline counts: commonly 30-spline in stock Dana 60 front axles; 35-spline is used in certain heavy‑duty aftermarket or upgraded configurations.
These dimensions reflect the most common reality you’ll confront when assessing a Dana 60 front axle. Always confirm with a physical inspection or build documentation when precise sizing matters for parts compatibility or strength requirements.
How to verify the exact size on your vehicle
To determine the precise front-axle size for your Dana 60, follow these practical steps. The goal is to identify the exact spline count and shaft diameter so you can select compatible parts or verify a swap.
- Inspect the axle shaft near the wheel hub for stamping that indicates “30 Spline” or “35 Spline,” or a similar designation.
- Count the splines on the end of the axle shaft if there’s no visible stamp; 30 splines or 35 splines are the common counts.
- Measure the outer axle shaft diameter with calipers or a precise ruler; the standard for Dana 60 front axles is typically about 1.75 inches, but confirm with a measurement.
- Check the vehicle’s VIN, build sheet, or OEM documentation to identify the exact axle code and configuration for your model/year.
- Consult a parts catalog or contact the manufacturer with your make, model, year, and axle code to confirm the precise front-axle specification.
Following these steps will help ensure you know the exact front-axle size of a Dana 60 on any given vehicle, which is essential for parts compatibility, upgrades, and maintenance planning.
Summary
In most stock Dana 60 front axles, the outer shafts are 1.75 inches in diameter with 30 splines. Some heavy‑duty aftermarket or model-specific variants employ 35 splines. To be certain, verify by inspecting stamping or counting splines, measuring diameter, and consulting vehicle documentation or a parts catalog. With the right measurements, you’ll be well positioned for correct replacements or upgrades.
Are all Dana 60 axles the same?
If there are 7 bolts, then you have a GMC/Chevy or Jeep Dana 60 axle. These axles are all exactly the same. If there are 4 bolts, then you have either a Dodge or Ford Dana 60 axle. These two axles are not identical.
Is a Dana 44 a 3/4 ton axle?
Front Dana 44 solid axle
The Dana 44 Front axle first saw use in the 1950s and still in use today. Dana 44 Front axles were known for utilizing locking hubs or a center axle disconnect system. However, a permanently locked-in Dana 44 is not uncommon. The Dana 44 has seen use in 1/4-, 1/2-, 3/4-, and 1-ton rated trucks.
Is a Dana 60 a 1-ton axle?
Yes, a Dana 60 is considered a 1-ton axle, particularly when it is the front axle found in 1-ton trucks. However, a Dana 60 rear axle is typically rated as a 3/4-ton axle, and while the Dana 60 is a heavy-duty axle, the 1-ton designation is specific to its application in 1-ton trucks.
You can watch this video to learn more about the differences between 1-ton axles and other types: 1mJK Gear and GadgetsYouTube · Jul 12, 2024
- Front axles: The Dana 60 front axle is the most common 1-ton axle found in 1-ton trucks and is also very popular for swaps into other vehicles because of its strength.
- Rear axles: A Dana 60 rear axle is generally rated as a 3/4-ton axle.
- Heavy-duty components: The 1-ton Dana 60 features larger components than its 1/2-ton counterparts, including a larger ring and pinion, axle shafts, and a stronger housing, which makes it more durable for heavy loads and large tires.
- Usage: While Dana 60s were originally used in 1-ton trucks, they have become a popular upgrade for off-roading enthusiasts due to their strength and durability.
What size is the Dana 60 front axle?
A modern Dana 60 front axle comes stuffed with much stronger 1.5-inch-diameter, 35-spline axleshafts (center), which can safely handle 37-to-44-inch tires. Aggressive drivers can take their Dana 60 a step further with aftermarket 1.70-inch-diameter, 40-spline axleshafts (left).
