I have a yj that I am wanting to 3, or 4 link. Can anyone tell me the pros or cons of each? I would also appreciate some schooling on how to determine the proper spring rates to choose if using coilovers. The yj has a 350,465,205 w/ 60 front and 70 rear. It will likely be for offroad only if that helps or makes any difference. And if anyone has any used parts for this let me know. Thanks.