Is running 4.4 going to be a bit much, if I'm understanding correctly double cardan shafts are happier when the pinion is more inline with the shaft, increasing caster increases the pinion to driveshaft angle, I guess it's a delicate balance.
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We will find out, you also don't want too shallow caster of your handling will be really unstable .
Once lifted the 4.2 won't feel like it did stock. 4.4 is a pinch more. Lucky I have access to an Alignment rack at
work to get a lot of trial and error without spending soo much money. I can a see a bit of angle on the front joint.
I had the old front joint removed waiting on the Adams shaft when I aligned it first. Man its stable at speed but
starts to vibe.
I guess at the end of the day its not ment to run the Autobahn like a Mercedes Benz. Those suckers have 8 degrees caster on some models
Oh and according to the Hunter Alignment Machine the spec for the JK caster is between 3.2 to 5.2 the very center of that spec is 4.4
Also My Adams joints are spicer. I've heard the Woods have the Chinese joints
Woods has good info on the site regarding the pros and cons of 1350 vs 1310s
PHX