The Insane Shafts 500 HP Axles are a great upgrade for both the street and track-focused CL7/CL9. Crafted from Chromoly steel, these axles undergo our proprietary annealing and heat treatment process before being cryogenically treated to provide added strength for today's high-horsepower vehicle needs. Real-world tested and proven, they can handle up to 1000 wheel horsepower in extreme conditions on or off the track. All Insane Shafts axles include removable ABS rings (if applicable) and new spindle nuts.    

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