I Currently have 35" MT/R's on a 2.5" RE lift. When I decide to go 37's would it be reasonable to keep the 2.5" lift and do flat fenders to gain the clearance? What will suffer as opposed to replacing with a 3.5" RE lift and doing all the nuances involved with a lift that high. My axles will be trussed and new U joints axle shafts etc. has anyone done this? Pros/cons? For reference it is a 2012 JKUR with soon to be 5.13 gears.