A Torque Requirement Like No Other

Drive axles are subjected to immense torque loads. Simply multiply the engine torque by the transmission ratio and the ring-and-pinion ratio (torque x low gear ratio x rearend ratio), and you see that forces multiply rapidly.

And what’s on the receiving end of this force? The drive axles of a 1,300 horsepower drag car must collectively withstand upwards of 12,000 lb-ft of torque every time the driver drops the hammer.

While the performance requirements of street vehicles typically don’t require beefy racing axles, driveline swaps, power adders, and/or narrowing the existing axle housing most assuredly cry for sturdier replacements and support from their bearings.