The HD springs are rated for 650 to 750 lb. depending on the lift.
A class V hitch is good to 300 lb. tongue weight which is the max the XJ is rated for.
You can try and put 2000 lb. on that hitch but I expect there's going to be a lot of steel on the ground and the tops of those air shocks poking up thru the carpet before you get halfway up the block.

 

The xj can pull 3500lbs your talking tongue weight

 

Your not understanding the concept- My whole boat and trailer is 2000 lbs hitch weight is near 100-125.You are lifting the load in the Jeep and the hitch weight. They are not air shocks and are not mounted anywhere near the shocks.They are air bags mounted between the spring and body channels just behind the axle. Just because they are rated at 2000 pounds does not mean that you can carry 2000,the ratings are all the same no matter what vehicle they are on. The idea is you load up, then air up until it's level. Then when you don't have a load you let the air out and your back to normal ride. Whatever spring set up you choose you should not go over gross vehicle weight or hitch weight. I'm just telling you what worked for me,3000 mile trip with the only problem being vapor lock on the 3rd injector, and way easier to install than replacing springs.

 

Not to hijack but I have a quick question on the subject. I'm planning on lifting in the next few months but I sometimes have loads in the back of the jeep. My leafs are pretty much flat right now and when going through dips with no load my tires are hitting the inside of the flares (due to the offset of my wheels) and with a load they rub even babying through dips. I've been toying with the idea of the helper springs and at about $40 for the pair thats not too bad and I could always use them later. Any thoughts on using them for the few months I need them??

 

Well, AAL's have been called a bandaid, so if you need something to help reduce sag for a bit, they will work. Also, consider extending those bump stops a bit. It will help prevent over stuffing your suspension (and tires).

 

Does the airlift add any ride comfort with or without a load? It looks like it would limit flexing if you took it offroad.

 

About 4 years ago I got in a jamb, the rear was way sagging with the load I needed to get (300 miles) home. $75 for air shocks from Napa got me up and going. Maybe not the best solution, but they are still holding. I have the filler in there by the fuel filler tube sticking up through the carpet, adjust the pressure sometimes for the load.

Don't touch the plastic air line with a soldering iron while working on the trailer wireing. All the air rushes out and the rear of the jeep comes down. (I hear! Lol)

I think air bags or overloads that didn't come into play unless it was squished would be better....

 

Nick I don't drive much off road,the reason we started buying Jeeps is because I never had a vehicle that could make it up my driveway in the winter and we were tried of it! Don't know what you mean by ride comfort other than when it's loaded down it drives and tracks better when it's level and as far as off road flexabilty let the air out.I run 20psi loaded and 10 when empty.They don't seem to affect the "feel" of the Cherokee,I have 98 Grand that since when new I did not like the way it drove compaired to my Countries or Sport.