98cherokee531

I recently swapped my 3" RC coils and 1.5" spacers for a set of 4.5" Rubicon Express coils and noticed the front axle was pulled backward noticeably with my fixed short arms. So the nice FedEx man brought me Iron rock adjustable lower control arms and I threw them on at 16.5" center distance with my stock uppers. Everything looked good, axle centered, pinion angle looked ok. Took it for a ride and got some minimal vibes out of my front axle at like 35 mph. So for now what do you guys recommend trying and what do others run for control arm length? I'm trying to avoid buying upper arms at the moment due to other expenses if at all possible. Also, what's my best method of checking my castor off the axle?

94XjSport94

Get a magnetic angle finder to check your castor angle. Adjustable uppers will make dialing in your pinion angle and castor easy, and possible. You can't exactly set castor (or at least to it by any drastic means or efficiently) with only adjustable lowers.

98cherokee531

Thanks for the reply. Where is the best spot on the axle to check my pinion angle?

freegdr

Alignment.....http://go.jeep-xj.info/HowtoAlignment.htm

96XJ2Door

Just an FYI,,,I have 6 or so inches on my 1996 2 door.

My fixed arms are 17" eye to eye center.

XJCherokee182

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Cruechief

Fyi http://www.lunghd.com/Tech_Articles/..._Arm_Chart.htm

huntingman2706217

lol... get an alignment... they will adjust accordingly... anytime you change arms... GET AN ALIGNMENT