Driveshaft Angle

[Geno]

I’m very new to the Jeep World so my question might be the dumbest of the week.

I installed adjustable control arms all the way around as well as adjustable front and rear track bars. After install I had an alignment done at a 4x4 shop. Only issue was left front tire had a small amount of camber out.
My concern is a driveline vibration that wasn’t there before. The more YouTube videos I watch the more confused I get.
My Jeep info:
2015 Jeep JK Unlimited sport
3.5 in lift per shop (not new)
Nitro Ridge Grappler 35X12.5X17 (not new)
Core 4x4 adjustable control arms all the way around
Steer Smarts yeti adjustable track bars front and rear
I’m not sure what the numbers should be or what I need to do to fix it? Help please and thank you

Geno
Go Vols!!

 

[wayoflife]

The pics you posted up are of your rear drive shaft and unless a balancing weight was knocked off of it, you should NOT be feeling any vibrations from it, regardless of the angle the output shaft or pinion are at.

That said, do you have a u-joint style double cardan drive shaft up front? If so, you probably have too much caster set now. Even if you still have a factory front shaft installed, it still has one u-joint and is probably going out, out of balance and or suffering from too much caster.

 

[Geno]

The pics you posted up are of your rear drive shaft and unless a balancing weight was knocked off of it, you should NOT be feeling any vibrations from it, regardless of the angle the output shaft or pinion are at.

That said, do you have a u-joint style double cardan drive shaft up front? If so, you probably have too much caster set now. Even if you still have a factory front shaft installed, it still has one u-joint and is probably going out, out of balance and or suffering from too much caster.

Thanks. It’s the stock driveshaft up front. I’ll post the front in a sec. Thanks for your help

 

[Geno]

Thanks. It’s the stock driveshaft up front. I’ll post the front in a sec. Thanks for your help

Thanks. It’s the stock driveshaft up front. I’ll post the front in a sec. Thanks for your help

Thanks. It’s the stock driveshaft up front. I’ll post the front in a sec. Thanks for your help

 

[Geno]

Thanks. It’s the stock driveshaft up front. I’ll post the front in a sec. Thanks for your help

Front numbers: caster 3.1 on drivers side and 3.5 on the passenger side

 

[wayoflife]

Front numbers: caster 3.1 on drivers side and 3.5 on the passenger side

You need to check your caster angle like this

Basic Do-it-Yourself Jeep JK Wrangler Front End Alignment

If you've just installed a brand new lift on your Jeep JK Wrangler and are wanting to get it aligned, there are a few things you should know before you take it to a shop and pay to have it done. First off, you should know that thanks to the new steering design on the Jeep JK Wrangler, very...

www.wayalife.com

 

[Disciple Off Road]

@Geno Looking at your second set of pics, it looks like the front CV boot (on the transfer case side) of the driveshaft is damaged and throwing out the grease. Super common on a stock shaft with a tall lift kit installed. So in addition to caster angle, the joint could be failing and causing some vibrations as well. If not, it will be a problem in the future.

 

[Geno]

@Geno Looking at your second set of pics, it looks like the front CV boot (on the transfer case side) of the driveshaft is damaged and throwing out the grease. Super common on a stock shaft with a tall lift kit installed. So in addition to caster angle, the joint could be failing and causing some vibrations as well. If not, it will be a problem in the future.

Thanks for the advice! I’ll give an update in a few days. Thanks again!!