Drive review update:
I ran it along the neighborhood streets before I lengthened the rear lower arms and I could feel a vibration in my lumbar that I didn't notice before. This would start around 35-40mph. After making the arms longer, that vibration went away. I got it out on the highway last night and had a couple of interesting developments. I used to have a shimmy in my steering wheel from 48-55 mph. The rig would not shake, just the steering wheel. That has been totally resolved! On the first highway run, I got up to 65mph ad started to notice a feeling like the jeep was light in the front. When I would hit little rough spots in the road and the body seemed to vibrate opposite of the lower suspension - a lateral movement rotating about a virtual point in the middle of the front springs. I hit one small rough spot and it through the front end into a frenzy! I took my foot off the pedal and the vibrations slowed down. I kept driving but realized I had developed a death grip on the wheel. I have since been up to 75 mph and while it still feels a little unstable, it is no where near as bad. I will keep an eye on this and see if it continues to go away. I have replaced the steering shimmy with some kind of pulsating vibration under my seat over 62mph. It is a vibe that varies in intensity like a sine wave. The cycle is about 2-3 sec from low vibe to high vibe to low vibe. Again, it is not a change in the frequency of the vibe, just the intensity of the vibe that I feel. Does this indicate that I might need new U-joints? I didn't notice any play in the joints when I was under there last night.
More spring feedback. The rear springs are quite quick in increasing spring rate. The fronts seem to have more travel before you get feedback from the springs. Brings out the fact there is some tightening I need to do on the back door hinges. The arms give a great deal of road feedback. Much more than the stock arms. This is probably due to the JJ vs rubber. I am used to this from poly and brozoil high performance suspension and shifter parts. Some people will definitely not like this type of ride. I also still have load E stock MTR tires and they will probably need to be deflated a bit to absorb some of this. The next tires I will be buying are load D. I have decided not to go with load C since I want more sidewall strength and better road wear in general.