My 2004 TJ Rubicon was lifted 3 inches by the previous owner with a pro mod lift kit but it still has the stock drive shafts.I’m getting some minor vibration while accelerating which disappears as soon as I push in the clutch. No worn U-joints etc. I am ordering a new Tom Woods double Cardan drive shaft. My current dive shaft angle is 14 degrees and the pinion angle is 6 degrees. I’m assuming I’ll Need to raise the pinion angle when I install the new drive shaft. It has adjustable lower control arms and the stock upper arms. Is it okay to make the adjustment via the lower control arms or do I need to buy adjustable upper control arms. So what should my angles be on the new install? Lots of YouTube videos out there but lots of varying info. Thanks in advance.