Dana 60 Kingpin 40-Spline Drive Flange Kit - Crane Axle
CADF6040
The Crane Axle 40-Spline Dana 60 Drive Flange Kit replaces traditional locking hubs with a fixed drive flange built for high-abuse front axle applications. Designed for compatible GM and Ford Dana 60 wheel hubs using 40-spline outer axle shafts, this kit creates a direct mechanical connection between the axle shaft and wheel hub without the internal engagement mechanism of a locking hub.
The drive pucks are precision machined from heat-treated 8620 chromoly steel for strength and spline durability under extreme torque and shock loads. Black anodized 6061 aluminum caps feature an engraved Crane Axle logo and O-ring sealing to help protect the drive flange components from mud, water, and debris. For rock crawlers, rock bouncers, competition buggies, Ultra4 cars, and other 40-spline Dana 60 builds, this kit provides a simple, fully engaged wheel-end solution built around strength and reliability.
Includes:
- (2) 40-Spline Drive Pucks – Heat-Treated 8620 Chromoly Steel
- (2) 6061 Aluminum Drive Flange Caps – Black Anodized with Engraved Crane Axle Logo
- O-Rings
- Installation Hardware
Specifications
| Manufacturer | Crane Axle |
| Axle Platform | Dana 60 |
| Axle Position | Front |
| Axle Shaft Spline | 40-Spline |
| Hub Compatibility | Compatible GM and Ford Dana 60 Wheel Hubs |
| Drive Puck Material | 8620 Chromoly Steel |
| Drive Puck Treatment | Heat Treated |
| Cap Material | 6061 Aluminum |
| Cap Finish | Black Anodized |
| Cap Seal | O-Ring |
| Engagement Type | Fixed Drive Flange |
Fitment
Primary Fitment:
- Dana 60 front axle applications
- Compatible GM Dana 60 wheel hubs
- Compatible Ford Dana 60 wheel hubs
- 40-spline outer axle shafts
- Custom fabricated Dana 60-based steering axles
Common Applications:
- Rock crawlers
- Rock bouncers
- Ultra4 and competition vehicles
- Trail buggies
- Mud trucks
- High-horsepower custom off-road builds
Fitment Notes:
- Requires a compatible 40-spline outer axle shaft
- Replaces traditional locking hub engagement with a fixed drive flange
- Does not provide a manual unlock or free-wheel function
- Verify wheel hub, spindle, axle shaft spline, and complete wheel-end configuration before ordering
Tech Insight
A 40-spline Dana 60 wheel end is typically being built for one reason: strength. Using a traditional locking hub introduces an engagement mechanism between the axle shaft and wheel hub that is unnecessary on a dedicated off-road vehicle where the front axle does not need to be manually disconnected.
A fixed drive flange eliminates that mechanism and keeps the axle shaft mechanically connected to the wheel hub at all times. The heat-treated 8620 chromoly drive puck handles the torque transfer while the O-ring sealed aluminum cap protects the assembly from trail debris and contamination. For high-horsepower vehicles running large tires and upgraded 40-spline axle shafts, the drive flange keeps the wheel-end design simple and fully engaged.
