Driveshafts: The Backbone of a Smooth Ride
When upgrading or restoring a vehicle, the driveshaft is often the last component people think about. Yet, it plays a crucial role in connecting the transmission to the rear differential. A properly fitted and balanced driveshaft can mean the difference between a seamless cruising experience or an uncomfortable, bumpy drive that will shake you to your bones. Inland Empire Driveline’s expert, Jeff Gilroy, offers insights on getting driveshaft measurements right the first time.
Getting the Right Fit
One of the most important steps in driveshaft installation is measuring accurately. The measurement should run from the tip of the transmission output shaft to the yoke face on the rear end. Miscalculations can lead to a driveshaft that’s too long, potentially damaging components, or too short, risking detachment. Inland Empire provides a straightforward measurement form to guide customers through this process.
Angle and Phasing
The driveshaft angle is extremely important; an improper angle leads to excess vibration and worn U-joints. The term “phasing” refers to aligning U-joints to prevent them from working against each other, another common cause of unwanted vibrations. A properly phased driveshaft will reduce wear and reduce vibrations.
Critical Speed and Tube Sizing
Driveshaft critical speed is determined by tube diameter, length, and RPM. When the shaft’s critical speed is exceeded, it can bend or twist, causing catastrophic failure. Using larger tubing, like a 4-inch diameter, or lighter materials, such as aluminum or carbon fiber, helps prevent reaching this critical speed.
How do you avoid reaching critical speed? Simply put, be honest. When you’re ordering up a driveshaft, be honest with your plans, goals, and intentions with the car. A basic driveshaft might work for cruising down to the local burger joint. But if you plan on putting some serious power in front of it and some big sticky tires behind it, things can go wrong real fast. If you’re planning on drag racing or using power adders, just tell them! It’s that easy.
Creating a Precision Driveshaft
Inland Empire uses specialized equipment to construct driveshafts to exact specifications. After cutting and mounting, the driveshaft is press-fitted, welded, and balanced to ensure a perfect fit. This precision assembly minimizes vibrations and helps extend the driveshaft’s lifespan.
If you need driveline parts give our friendly techs a call at (203) 235-1200 or hop on our site at SS396.com!
