k im getting a 94 grand cherokee soon(if i can ever sell my explorer) and it has a 3.5 inch lift from rubicon express. it has coils all the way around. now the question... iv heard on stock zj's for a budget boost you can put the front springs on the back for like a 2 or 3 inch lift, then put the back springs up front and add a coil spacer to even it out. can i do that with this jeep since it already has a lift? for an extra couple inches? would that cause any problems? would i need new control arms or what not. im still new to this stuff, thanks in advance

Just put some adjustable coil spacers in. I think Rubicon Express makes some.

ACOS adjustable spacers.
I'd do new arms personally.

Do not go over 4.5" on short (stock) control arms, it'll ride and handle like shit plus perform poorly.

good info thanks