The lift and larger tires will reduce the towing capacity from the factory ratings.
We had a 1999 TJ automatic, I6, 4WD, with a 3" lift and 33" tires. If I remember right the factory limit was a 2000 pound popup. We had one that weighed about 1400, and totally empty was manageable but not a lot of fun. I towed it empty and with me alone in the Jeep to the campsite, then made a second trip for supplies and people.
Contact Jeep customer support with the VIN and they can tell you the capacity as shipped from the factory, and de-rate from there for the lift, etc.