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ST Racing Concepts Heat Treated Carbon Steel "Big Bone" Universal Driveshaft Set (2)

[SPTSTH103165]
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This is an optional ST Racing Concepts Heat Treated Carbon Steel "Big Bone" Universal Driveshaft Set, and is intended for use with the HPI Blitz short course trucks. Universal driveshafts are often the first upgrade for many racers, but for years universal driveshaft design and material have remained the same, despite the drastic change in power from brushed motors and nickel cell batteries to the more powerful LiPo/Brushless combination. ST Racing Concepts has studied all the components used in traditional universal shaft's, with a focus on improving the material and design. The material is critical and equally important is the heat treatment process. After months and months of prototype testing different materials and increments of heat treating, ST Racing believes they have developed a better finished product.

First the universal driveshaft bones have increased in diameter for more durability. They also used the same carbon steel material for the axles, which features two sets of universal pin holes so you can get twice the life out of the same set of axles. Even the joints and joint pins are of carbon steel material and the pins feature a "step" for the setscrew to more securely hold the universal driveshafts together. Even the universal shaft roll pin at the end was not over looked. Carbon steel at the pin although strong will unfortunately add excessive wear to the diff outdrives, so a different material was selected just for the shaft pin for durability and reduced wear on the diff outdrives. 

This product was added to our catalog on February 24, 2011.

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