im thinking of buying a rc 4.5 lift kit w leaf spring set, will i have any issues ? or is this a bolt on and go kit, at end of my budget after buying, so wont have money for issues, what u guys thing any experiances

you will need a adjustable trac bar, that should be it though

a guy said i would have rear shaft vibrations? will i or not? that sye sounds expensive?

You may have vibes... or you may not... I did, but the T-case drop included in the kit fixed the problem.

not all jeeps react the same to a lift,so yeah the TC drop may be all it will need to fix any vibes.

I am running it and have both'TKL kit and SYE. The only thing other I would suggest is Control arm drop brackets. I just ordered RoughCountry's. The lower control arms need to be parallel to the ground. It will give u a lot smoother ride and allows the suspension to articulate better. RE makes them too but 2x expensive. my 2c.