That is a wise choice. RK makes very nice arms.

 

I measured the pinion angle and it is at 0 degrees, the front driveshaft is at 8-9 degrees. On a different forum where this discussion took place, it was said that having the pinion angle and the driveshaft angle the same on the front would lead to driving problems and would require the jeep to be trailered. It was said that unless the jeep was in four wheel drive at highway speed, there would be no noticeable vibration because it is under a no load condition during regular driving.
I would appreciate any input here from anyone who has changed out their front driveshaft on a four door JK to a double cardan style and if they had any problems with driveshaft angles.

 

Wait a bit. Rk is making a new joint that looks promising.

 

If you got a accurate reading on the flange and it is 0, your caster is 6*
That's too high with 4.5" of lift. Driveshaft will not like at all.
I see guys running 3* pinion and 3* caster with that much lift.

Im around 3.5" of lift and have TF lowers. Adams DS running pinion at 2* which is stock. Caster will be at 4*
I do have slight vibes on the highway so I may take it down some.
Or invest in the Teraflex housing

 

So I am not sure if I got this correct or not but what I think that you are saying is that my axle needs to rotate 3 degrees up?

 

I placed the angle gauge on one of the two small round flats on the front of the axle just outside of the axle cover. Is this the correct place to get a good reading of pinion angle?

 

I actually asked this question before a while back on a couple different threads and also asked several people about the same thing. I have a 4.5" lift and stock control arms on my JKUR with no cam bolts either. Granted, I lost probably an inch in lift due to all my modifications on the Jeep, but the overwhelming response I got was that on the front, I did not need to worry about pinion angles and that I could just swap my stock DS for an aftermarket one without worrying about adjustments. They said that it was only on the rear driveshaft that the angles were critical and that is where I would need proper adjustment. Can someone confirm this?

 

The BDS lift that I am running included new control arms but they are not adjustable. Did you end up replacing your driveshaft and if you did, did you have any issues?

 

No, I haven't swapped out my driveshaft yet. Still running the stock driveshafts. I want to get the Coast 1310. I will try to find the thread where I asked this question before.

 

Coast 1310 is the one that I will be ordering.