So I've had the 3 inch lift on my 05 Lj a little over 4 years now and it is way past time for a change (my front springs are sagging and it makes me sad). I am thinking of dropping some dough and moving up to a 4.5" lift (something with johnny joints all out the wazoo). The question I have come across and can't seem to find a definitive answer to is do I need an SYE with the longer rear drive shaft of the Lj? I do a fair amount of moderate (not a subjective statement at all...) off roading and while the 3 inches of lift have served me fine so far...my cousin just put 4 inches on his 09 Wrangler and now it's taller than mine!
Also if you'll all forgive my ignorance...
The slip yolk itself slides in and out of the Xcase with rear axle movement. Does having the slip yolk eliminator limit the movement of your rear axle because the rear drive line no longer has the ability to "make itself longer"? Is the replacement rear axle kind of one size fits all, or do you have to order based specifically to fit the lift you are doing?
Also I have heard a lot about how an SYE and new rear drive shaft is the way to go simply because it is stronger, and odds are that no matter what I will eventually be putting one on. But I am not exactly made of money so if I get the lift now, I need to save up for the SE later and vice versa which is how the whole "do I really need it?" came up.