In many areas, it’s a fact that the easier a job appears, the harder it is to do correctly. That’s certainly the case with resizing a driveshaft.
Although the driveshaft seems like a simple tool (it’s just a cylinder that goes between the transmission and the differential and rotates), the speeds at which it spins require of it extreme precision. All sorts of problems can be caused by a small degree of disbalance.
Redline Rebuilds took it upon themselves to guide the expert through making a new driveshaft. Although the tube itself is simple enough, selecting one that’s too small can lead to “noodling,” in which the shaft deforms and can even hit the underside of the car.
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Once you’ve found the right width, you have to find the right length, a job that can also lead to difficulties. It may be easier to measure the drive shaft with your car upright, but if you have to lift the suspension, this can also cause issues. The best way to determine the shaft’s location is on the ground.
It is not easy to change the shaft length. To prevent the tube from angling at one end, both sides must be perfectly cut. It requires precise cuts with the grinder.
It is possible for the driveshaft to not balance perfectly even after the tube is cut to the correct length. A lathe spins the driveshaft. The drive shaft must then be balanced. Finally, you can install the driveshaft by welding in weights.
Although no single step of the process involves complex technology, it is necessary to pay attention and precision at every stage.
