yah I would rather do a 4" over a 3+1 I have a hate on for body lifts from previous trucks. Seen way to many of them break...
2 things.
First, body lifts dont break unless its farmer kids using stacks of hockey pucks, and that is not even considered a body lift.
Secondly, body lifts are required for any long travel suspension build to be done properly.
If you want 14" suspension that has works porperly, and isnt stupidly tall, you need to incorperate body lift.
Reasons to do a body lift.
With a body lift you can combine a motor mount lift. With a JK's low oil pan, that is a major win.
Lower COG at given shock travel. As in, you want 6" of uptravel, your COG is significantly higher if you do it all with suspension lift.
Improved driveling angles via motor mount lifting.
Improved driline angles via lower suspension ride height.
Increased driveline range of motion due to operating at more favorable angles.
Ability to tuck driveline.
Ability to tuck fuel tank.
Where advanced jeep building is concerned, there is only one reason not to body lift.
Ignorance.
It never fails to boggle my mind that this many years after the TJ and everything that has gone on with link suspension some of you guys are still spending thousands of dollars to put radius arm suspensions under your rigs............................
Or the fact that you can be fooled so easily into thinking a radius arm arm has any advantages over short or mid arm just because its 40 inches long.
Orrrrrr, that anyone would still recommend anything Teraflex does.........lol
Whatever, its your dollars.