How do you measure driveline angles?
How do you measure driveline angles?
Place a spirit level protractor on the driveshaft about halfway between the transmission and the Differential. Read and record the angle shown on the protractor scale and note whether the driveshaft points up or down at the front. Record the angle as “3 degrees up” or “2 degrees down,”etc.
What should my driveline angle be?
Driveline angles should be equal to or within 1° of each other. When checking driveshaft angles, be sure all tires are inflated to their normal operating pressure.
What is a good pinion angle?
According to Currie, the average car crafter should strive for between 1 and 3 degrees between the tailshaft of the transmission and driveshaft, and 1 to 3 degrees between the driveshaft and pinion. Furthermore, the two angles should be nearly equal (between 1 and 3 degrees), but always opposite (see crude diagram).
How do you fix pinion angle?
If you are using a four-link rear suspension the pinion angle is easily adjusted by changing the lengths of the bars that locate the rear axle. However, if you have mounted your rear axle on a pair of parallel leaf springs things are a bit more complicated than simply adjusting a couple of rods.
How do you measure the angle of a driveline?
What should the driveline angles be on a 1310?
U-bolts for 1310 and 1330 joints are to be tightened to 17 ftlbs. Ideally, both driveshaft-operating angles will be 1 to 3 degrees. Anything over 3 degrees at the rear axle will shorten your universal joint’s life and could create vibration.
Where to put spirit level protractor on drivelines?
Please watch above video or read step-by-step instructions with images below. Questions? Give us a call at 1-866-856-4687, our Drivelines experts will help diagnose this issue. Place a spirit level protractor on the driveshaft about halfway between the transmission and the Differential.
What should I do if my driveline is out of Spec?
Sacrificing driveline angles to save your tunnel will cause you more problems in the long run. If your first driveshaft-operating angle is out of spec, you may need to put in spacers or modify your crossmember.
Which is the best tool to measure driveline vibration?
A good tool for measuring these angles is an inclinometer. They can be obtained quite inexpensively from a local parts store or tool supplier. First measure the transmission output shaft angle. It should be pointing downward to the rear with the vehicle sitting at ride height on a level surface.
Place a spirit level protractor on the driveshaft about halfway between the transmission and the Differential. Read and record the angle shown on the protractor scale and note whether the driveshaft points up or down at the front. Record the angle as “3 degrees up” or “2 degrees down,”etc.
What’s the best way to fix a driveline vibration?
At least 1-degree and ideally not more than 3-degrees up. You can alter the rear end pinion shaft angle by inserting or removing wedge-shaped shims under the rear spring mounts or by adjusting the length of the control arms positioning the rear end. See the photo below…
Why does my driveline vibration increase with acceleration?
If the vibration steadily increases with driveshaft speed (either accelerating or decelerating) the symptom is primarily the result of a driveshaft imbalance or yoke run-out. Sometimes this yoke run-out problem can be improved by rotating the U-joint 180-degrees in the rear end differential yoke.
