My grandpa called the other day and said he got a new boat and wants to give me his old one. The boat and trailer are approximatly 5000lbs. So now I need to figure out if I can tow the boat. My options are my 2006 tacoma or the wifes 2001 landcruiser. What are your thoughts on towing this much weight with the landcruiser? Has anyone added helper air bags to the rear suspension to assist when towing loaded? What air bags are recommended?