Drive shaft Vibration
- Thread starter Scott226
- Start date
Front or rear shaft?
If front, you may have too much positive caster set. If rear, you need to set your pinion angle in line with the drive shaft. Rear adjustable upper control arms are needed for this. If everything is good, you just have a shaft that wasn't balanced well.
If front, you may have too much positive caster set. If rear, you need to set your pinion angle in line with the drive shaft. Rear adjustable upper control arms are needed for this. If everything is good, you just have a shaft that wasn't balanced well.
I see that you have the Rancho 4" lift, is that the Sport lift with the drop down brackets? If so, your caster should be fine and you could just have a shaft that isn't balanced well.
Unfortunately, so do a lot of other people.
Take your shaft to a local shop and have it rebalanced. Shouldn't cost more than about $45 to do. If you got your Woods shaft with the Chinese made gold seal u-joints, do yourself a favor and have them replaced with made in the USA Neapco or Spicer joints. Trust me, it'll be worth your time.
The Wandering Jeeper
Caught the Bug
I just went through the same issue. Exactly. I melted the grease out of the ujoints on the double cardan joint. I had to have the driveshaft rebuilt. When it was back in I had a vibration from 57 to 61 mph. After having it rebalanced several times it turns out that I had to yank the yokes out with it and have it balanced all together. Once I did that the vibration was gone.
Hope that helps!
Hope that helps!
Good to hear. Just out of curiosity, what did you have your caster set at?
Team Desert Eagle
New member
I also would like to know the measurement of caster.