Towing Mods for '05 Jeep Liberty CRD

Well I just bought some rear Airlift arirbags for my CRD and installed a Reese Brake controller. Any other towing mods suggested?

Next I am going to replace the torque converter, I ma wondering if the Mopar Euro torque converter will be enough for towing the hills (at around 4K lbs) or if I should go full pull with a Suncoast TC?

I would go with the suncoast converter myself.

I have been off and on talking to Hughes and it looks like they may be able to build a torque converter for the CRD as well, I will probably pursue it after the holidays once I get my V10 to 12V swap out of the the way.