You need to set up goemetry with a 4 link calculator, there are a bunch out there. On my three link I set it up based on the COG being at the top bell housing bolt and it seems to be right on.

http://www.pirate4x4.com/forum/showpost.php?p=4929623&postcount=21

That is, if I understand your question correctly.


2001Sport 3.0-Headers-Cage-RoofChop-NP231/D300-D44/ARB-Ford9/Yukon/3Link-37's+H1's-PSC Assist-108:1