Overview
Replace your factory dogbone-style axles with the Hot Racing Hardened #45 Carbon Steel Front CV Splined Axle Set for the Traxxas Unlimited Desert Racer. This complete drivetrain upgrade replaces the stock dogbones from the differential all the way out to the wheel hex with a true CV (constant velocity) joint design — delivering smoother power transfer at full steering lock and dramatically reducing the binding and clicking that plagues dogbone setups under steering.
Built with CNC-machined #45 hardened carbon steel CV joints, drive hubs, male slider splines, and stub axles, plus a CNC-machined aluminum slider tube, this axle set is engineered to handle the punishing forces of high-speed desert driving. Blue-anodized aluminum pin capture rings with rubber O-rings prevent pin movement during aggressive runs, ensuring long-term reliability.
Key Features
- CNC-machined #45 hardened carbon steel CV joints, drive hubs, splines, and stub axles
- CNC-machined aluminum slider tube
- Blue anodized aluminum pin capture rings with rubber O-rings
- True CV joint design — no dogbone clicking under steering
- Complete replacement from differential to wheel hex
Performance Benefits
- Smoother power transfer at full steering lock
- Eliminates dogbone bind and click
- Hardened steel survives high-power desert driving punishment
- O-ring pin retention prevents pin walk during hard use
- Telescoping slider design accommodates suspension travel
Usage Notes
Apply light grease to CV joints and slider splines before installation, then re-grease periodically. Apply removable thread-locker on screws threading into metal. Verify suspension travel falls within the recommended slider engagement range — never exceed the 164mm extended length, as this results in zero shaft engagement and risks separation.
Technical Specs
- Material: CNC-machined #45 hardened carbon steel
- Slider Tube Material: CNC-machined aluminum
- Pin Capture Rings: Blue anodized aluminum with O-rings
- Collapsed Length (overall): 154mm
- Extended Length (overall, zero shaft engagement): 164mm
- Collapsed Length (wheel pin to outdrive pin): 138mm
- Extended Length (wheel pin to outdrive pin, zero engagement): 148mm
- Weight per pair: 132g
What's Included
- Hardened steel front CV splined axle assemblies (left and right)
- Aluminum slider tubes
- Aluminum pin capture rings with O-rings
Fitment
- Traxxas Unlimited Desert Racer (1/7 scale)
- UDR front axles only
- Compatible with all UDR variants using stock front dogbone axles
Summary
The Hot Racing Hardened #45 Carbon Steel Front CV Splined Axle Set is the no-compromise drivetrain upgrade for serious UDR drivers. True CV smoothness, hardened steel durability, and motorsport-grade build quality — everything you need from differential to wheel hex.
