I'm wondering if I need new shocks, track bar extension bracket, lower controls arms etc.

This is what I've done to my jeep:

I have a 2013 two door sport with 35" MTR's. This is not a daily driver and I do go wheeling, but would also like to maintain decent highway handling, I would sacrifice that in favor of better off-road ability if I needed to. I'm also doing the DIY flat fender mod next week since I noticed some rubbing while I was wheeling this past weekend.

I've replaced the stock suspension with 4 door rubicon coils and shocks. I also added the rock krawler budget based leveling kit. That added about 1.75" in the front and .75" to the rear eliminating the natural rake. I also added the rock krawler front sway bar quick disconnects.

Are the 4 door rubicon shock enough or are they maxed out? Do I need new shocks? Should I add a rear track bar extension bracket? Do I need to extend the brake lines? Should I added new front lower control arms? What about rear sway bar links? What else do you recommend?

 

Running 35's, even with flat fenders you are going to get some rubbing without bump stops. 2" front bump stops and 1.5" rear should work well. With 2" front bump you will be able to run up to a 16.5" compressend length shock (usually those are shocks offered for 2-3" lift) in the factory brackets. Stock shocks up front are about 14.5" compressed.

A 16.5" compressed length shock will still give about 11" of front shock travel. You will give youself a better peforming setup by switching up shocks. I would look at lower spring retainers if you do step up in shock length.

 

You will need to do something with the brakelines front and rear. New lines or take the fronts out of the brackets and route them differently if you decide to go longer shocks. One thing leads to another.

 

So it sounds like I need new shocks, bump stops and brake lines. I don't know if this helps, but the rubi suspension added about 1.75" and the leveling kit added .75" for a net gain of about 2.5". I was thinking of getting bilstein 5100 shocks that accommodate a 2-5" lift. Does that sound right?

What about the rear track bar and front control arms? Are the 4 door rubi coils sufficient or should I upgrade those as well?

 

If you don't notice any issues driving I wouldn't worry about it. Only thing I would maybe consider is raising the rear axle trackbar bracket. Either the RK bracket or the synergy 1-2" bracket will be good. It will make the jeep flatter in the corners and generally handle better, but isn't required.

 

I've heard that with anything 2.5" or over you will need bumpstops and an adjustable trackbar, and possibly new brake lines. Don't quote me though.

If you do get new shocks, check out rancho rs9000xl shocks.

 

You need bumpstops to prevent tires from eating into sheet metal and fenders and/or to prevent over compression of the shocks. It is completely seperate from lift height choice.

You need trackbars whenever the axle has shifted to one side or the other based of changes in lift height. Usually, but not always, under 2.5" of actual lift height the shift is hardly noticable. Often raising the rear axle bracket will center the axle and privide stock like handeling.

You need brake line extensions or longer lines whenever the droop of the suspension exceeds the length of the lines.