Pinion angle question

[MrTeak]

So I took off my UCF ultra high skid plate (bad vibrations through the body I just got tired of) and put on the Barnes bolt on one. My pinion angles have changed and the jam nuts are tight and can’t be adjusted. I am getting 8.8 degrees on the drive shaft and 13.6 on the axle. I know they are far apart. I took it for a drive and am not getting vibration. I know they should be within 1 degree. Will something get damaged driving it with these angles? As in bearings

 

[Good Hope]

Your axle has a steeper angle than the driveshaft? Usually the problem is the other way around. You should be able to adjust the arms to drop the nose of the diff down a bit and eliminate your worry.

 

[chudlet]

Since you dropped your transmission a few inches, your pinion is now pointing too high. "Assuming" the rear is a double cardon shaft, technically, you should repoint the pinion right at the Tcase output shaft. But If you are not getting vibrations, I don't see how you would get any bearing issues. I have been wrong before, just ask my wife. I am sure if this needs corrected, a guru will hop in and provide better guidance.

 

[JMT]

The problem would be when you droop the axle the angle will get even worse and bind, so yes, you need to break the jamb nuts free and lower the pinion.

 

[MikeE024]

One jam nut will loosen when u turn it clockwise and the other will loosen turning it counterclockwise

 

[starkey480]

Even with no vibrations you will get premature wear on the ujoints if they are outside of typical operating angle. Won’t happen overnight but I’d definitely get the pinion angle fixed sooner than later.