Pinion Angle
- Thread starter TC2019
- Start date
cozdude
Guy with a Red 2-Door
You will want front lower arms to adjust your caster up front but in the rear you don't need the rear uppers right away. If you get and aftermarket rear shaft then yes you will need rear uppers
Rccrwlr
New member
What is your pinon angle with the factory LCA? How does it drive?
OverlanderJK
Resident Smartass
Don't buy them. You can run 8" of lift on factory arms. I read it on the Internet. Fuck the world!
cozdude
Guy with a Red 2-Door
Castor and pinion are different. Pinion doesn't effect how it drives, only caster does
branman
-
One effects the other. You can't change one without changing the other. So technically if you have 4* up pinion it will have a effect on how it drives.
Question for the OP - Are you still running stock drive shaft? Do you have driveline vibrations?
cozdude
Guy with a Red 2-Door
Yes technically you are right and that pinion angle is effected in both but the verbiage is different when referring the front and rear. As you know Pinion angle is used to when referring to the rear shaft. Caster is used when mentioning the front.
Rccrwlr
New member
Pinion angle, caster same difference.
OP what is your caster with the factory arms and how does it drive?
Rccrwlr
New member
You are correct sir. I was really referring to caster and when talking tech you should be specific and use the correct verbiage.
It's all related to how well it drives with the factory arms. If the OP knows the problems and can deal with the drive until he gets the LA system then it's all a mute point right?
Still on stock drive shafts and I don't have and vibration. Jeep run great it's only got 11k miles on it.
I twisted up my lifted 2014 with stock drive shafts and bad pinion angle. And then I had to replace my transfer case...
http://wayalife.com/showthread.php?t=29267
http://wayalife.com/showthread.php?t=29267
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Don't know what "people" you are referring to but, you only need adjustable rear upper arms IF you install a u-joint style double cardan drive shaft. This is so that you can set your pinion angle. Adjustable front arms aren't necessary but, they will help you to set your caster after installing a lift.
Trail JK
Active Member
This is good info. It never crossed my mind that I would need rear control arms once the new rear driveshaft went in.
Lol