4.2 or so is stock. Somewhere in the 4-6 range is a good place to shoot for after the lift, depending.

 

Happen to have any used ones from people going to long arms?

 

I don't know of any place of the C where you'll be able to find an accurate angle. A much better place is the pinion flange. Stock angles are caster at 4* and the pinion up at 2*. If your earlier 0* measurement is correct, your pinion should now be at 6*.

 

I measured using WOL writeup. placed the angle finder on the lower c like in this pic:


http://project-jk.com/wpg2?g2_itemId=28641

Here is the writeup.

http://project-jk.com/jeep-jk-write-...-end-alignment

When I placed the angle finder on the same spot as in photo above it said 0. I didnt put it on ground but it is very level part of driveway so I think that is fairly close measurement. Is there a better way to do this?

 

Assumption is that your kit is installed correctly and all torque to spec.....
I say caster angle is critical ...front uppers allowed me to adjust and I found that was the one 'adjustment' which took care of DW(after a TeraFlex 4.5" lift) . I specifically test drove after the lift install ...to experience DW ...then adjusted away from it.

 

I just ordered front lowers from clayton. Hope this fixes everything.

 

yea that no good... u want that angle finder to be around the 5 degree mark... positive.. so lower bj is infront of upper.

my lowers are set to 24" eye to eye, and uppers are 19.5". i have ome hd springs n 1"spacer upfront... my algle reads 5 both sides.

 

This is why I prefer to use the pinion flange as a measuring point. 5* is more than stock. Have you actually turned your pinion down from stock?

 

So once I get my new lower arms in and set them 23 end to end and keep stock uppers, what will my caster be?

 

The pinion measures about 3, so there is a 2 degree diff, which I think u want... If u look at it, it is pretty close to level, slightly down refering to the pinion flange.I have no driveshaft vibe issues at all. I can go almost 1/2" longer on the arms before I get a vibe. I have gone that far, and the gauge will read closer to 8 ish then. Drives good, but not with the vibes. The settings I mentioned work for my lift.