4 link vs. trailing arms pros cons

[propanemudtruck]

some obvious differences are:

4 link keeps pinion at same level at all ride heights
4 link MAY NOT require a track bar if it's triangulated
4 link you can adjust your pinion angle with easy adjustments for good launch
4 link can be set up to allow more or less forward bite and more or less body roll if cornering is a concern

trailing arms keeps pinion angle fairly the same on the swing up and down
trailing arms require one crossmember that can tuck the trailing arms into the frame

both would give better traction than leaf springs of course.