Ok so the po of my xj put on a 3.5 rubicon express aal lift, added 2" blocks, spacers, & shackles- 6" rc shocks. And a tom
Woods drive shaft.
So its at around 5.5" and on 33s.

My plan is to get 6.5 coils and full leaf packs and go to 35s when my 33s wear out. But I want to know if I will have to do anything else to go to 6.5? Can I Just throw coils and leafs in an be done?

Here's a few pics of my suspension right now.

 

i would do shocks or go to Detours and get his shock cheaters...brake lines if po did not, upper and lower adjustable arms, trac-bar (adjustable which you should have right now), and an sye (i know you said it has tw d-shaft but you did not mention sye)

 

are new shocks really necessary?
and what size lift are control arms needed at?

im pretty sure i have everything you stated but i just texted the po to make sure, hes a real nice guy.

 

If you have 6 inch shocks than your fine. Get rid of the block lol. And yes get extended brake lines

 

4.5" you need lowers over 4.5" you technically need uppers cause you start pushing the limits

 

well im at 5.5 right now and its fine... what exactly do control arms do? im confused with this stuff lol. and how much will they run me?

 

thats what i figured. and lol yes im tired of looking at that damn thing and hearing it squeak. i want full leafs so bad

 

Your boomerang shackles are on backwards......

 

seriously? the previous owner installed the lift.

 

Seriously....no pun intended.

 

well are they doing any harm? he put them on over a year ago..... haha just more stuff to fix.

 

You'll get better ride quality and greater rear axle flex once you correct them.