Bought my Jeep with what I believe is a 3.5 Rubicon Express lift on already. Im looking to get just a little more height/clearance out of my jeep. Any simple/cost effective suggestions?

 

Clearance for the tires in the wheel wells? Or clearance for dragging the belly over rocks?

Taller tires
Taller bumpstops
Trim the flares or go to flats
Add a body lift
Add coil spacers and deal with any issues that arise.

 

Looking to get more belly clearance/make room for 37's later on. What issues would I be looking at if I added coil spacers?

 

Same issues as moving to taller coils. Just depends on how much height you add and which specific components you currently have.

Brake lines will be stretched tighter. Shocks may over-extend. Caster will be lower/ pinions higher. Minimal loss of wheelbase. Steeper driveshaft angles, more chance of contact or losing a joint. Steeper steering component angles. Steeper control arm angles. etc

 

Flat flares and 37s now is your better approach.

Your RE 3.5" has shocks, brake line provisions, control arm and track bar provisions, etc. for a 3.5" lift.

Like he referred to above, if you go any taller, you will need to look at longer shocks, adjustable control arms, longer brakelines, steering correction, driveshafts, etc., etc.