I want to upgrade some weak components on my jeep. I have a 2000 tj and have read that tj's are known for having weak u joints. Is this true? If so what joints are reasonably priced and are of good quality? Also what other parts are known for being weak links and where should i start. I got my jeep with 60K miles and it now has 75K. I am worried that i will be out on the trail and something is gonna break. Again where should i start?