When selecting a rear and housing and axle combination for your drag racing application, it is important to know what types of options are available and how each works.
The most commonly used axle combination in drag racing is a flanged axle which includes a fixed hub and bearing that insert into a housing end on each side. The axle and housing end take the full brunt of the car weight, torque load and forces being applied from the car to the drive tires.
As you increase horsepower, the need for a safer option may come up. In many classes such as Pro Modified, a full floating rear end housing and axle combination is required due to its safety benefits. However, a full floating rear end housing can provide performance benefits as well.
In this video, Tim McAmis explains the differences between a flanged axle type rear end housing and a full floating rear end housing and axle combination.
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