Jk suspension

[Blue Baby Sound]

Like @jadmt said above, your tow rating is 3,500 pounds. I'm sure your trailer weight will be well below that. 2016 Tow Specs

We run 4.88s and 37s on our 2 door and IMO it's the perfect gearing without a trailer, so 4.88 would be a good set up for 35s and a trailer. We used the Teraflex Alpine CT3 lift but they make an Outback version with heavier springs that might be more at home on your build. LINK

We've loaded down our 2 door quite a bit, the rear has sagged a little under the weight but it's not bad. Like you we'd really like to have a trailer with an RTT, hopefully that can happen in the near future.

 

[billiebob]

they bumped it to 3500lbs for a 2 door in 2015 with 3.73 or deeper.

only for one year in the owners manual, it was a misprint, the 2015 JK is only rated for 2000#...

Altho I agree and say since the JK vs JKU are identical as are the TJ vs LJ..... every component is identical. the only difference is wheelbase..... I say the JK/TJ are lighter and should have the higher towing ability since the brakes, engine, suspension are identical, the same part numbers.

Heres my YJ, 3.07s the Pugeot 5 speed and a carb towing 3500# from Yellowknife NT to Nelson BC...... I had no issues and no brakes. Change of jobs, I loaded all my tools and hit the road Jack.... maybe 2000 miles in 2 days.

Not that I recommend doing it, I scaled it on route, had no idea I was grossly overweight.

 

[billiebob]

@billiebob.....your mileage may vary, your experience may be different......I stand by my trailer brake comments as in my experience they are helpful in maintaining the braking ability of the vehicle brakes.

Not starting an argument, just stating my opinion.

absolutely, do what works for you.... just keep it all legal.

 

[Blue Baby Sound]

only for one year in the owners manual, it was a misprint, the 2015 JK is only rated for 2000#...

Correct that up to 2015 it was 2,000 pounds.
But OP has a 2016, and the 2016, 2017 and 2018 JK owner's manuals all state 3500 pounds for 2 doors with 3.73+ gears. It was not a 3 year misprint.
Here's a LINK to the relevant pages taken from the owner's manual, or download the manuals direct from Jeep to confirm.

 

[jadmt]

Correct that up to 2015 it was 2,000 pounds.
But OP has a 2016, and the 2016, 2017 and 2018 JK owner's manuals all state 3500 pounds for 2 doors with 3.73+ gears. It was not a 3 year misprint.
Here's a LINK to the relevant pages taken from the owner's manual, or download the manuals direct from Jeep to confirm.

and I actually called Chrysler and they confirmed it was valid. I did mean to say 2016 because my 2 door was a 2016 and I wanted to know what changed.

 

[Jupiter58]

I bought the jeep used and there are no indication anywhere on what lift it is. It’s not spacers, that’s about as much as i know. It already seems like the rear sags a bit though.

The sagging is because the Einsteins all want a ‘level’ jeep with no rake hence all the dumb *** leveling kits and most lifts ‘level’ the vehicle. Until you put a bag of groceries in the back and the rear is sagging.

 

[shays4me]

I can’t find the diagram of the rear spring suspension right now but here’s the front. This will give you some indication of how much spring lift you have. The only real variable is how heavy your Jeep is.

 

[shays4me]

found it. Compare the factory measurements to your Jeep and you’ll have a better idea how tall your springs need to be.

 

[shays4me]

The sagging is because the Einsteins all want a ‘level’ jeep with no rake hence all the dumb *** leveling kits and most lifts ‘level’ the vehicle. Until you put a bag of groceries in the back and the rear is sagging.

This is 150% correct, unless it’s a mall crawler. Any vehicle built to load for camping/expedition use should have a rake when unloaded. It might not have that look that people prefer but it’s correct for it’s use. I see a lot of droop in trucks and suvs that are loaded because of incorrect spring rates and leveling kits.

 

[okfj60]

I’ve seen special edition Jeep’s with Fox shocks, not sure as far as lift at all…

 

[billiebob]

Correct that up to 2015 it was 2,000 pounds.
But OP has a 2016, and the 2016, 2017 and 2018 JK owner's manuals all state 3500 pounds for 2 doors with 3.73+ gears. It was not a 3 year misprint.
Here's a LINK to the relevant pages taken from the owner's manual, or download the manuals direct from Jeep to confirm.

Awesome cuz thats where all 2 door Wranglers should be.
I'd love to own a 2 door and legally tow 3500#

 

[pith helmet]

The towing capacity of the JKU is second only to the spacious interior. Mine with overloaded trailer this morning. Had to put the saw on the trailer because I was carrying a bottle of water and a bandana inside.

 

[shays4me]

The towing capacity of the JKU is second only to the spacious interior. Mine with overloaded trailer this morning. Had to put the saw on the trailer because I was carrying a bottle of water and a bandana inside.
View attachment 743361

I think you may have surpassed the GCWR of the JKU with that big of a saw!

 

[cjjohn]

I went against the grain with our current JKU. I only have a leveling kit, but run 35's, and 4:56s. I have the Bushwacker flares on. I also put in a set of Synergy +1 rear springs due to factory ones sagging. I've done Jeeps with lifts, and I am 100% happier with this set up. I tow a small utility trailer as well and it all works very well for me.