Originally Posted by oilersfan_39
but why on every ranger i see with a SAS it has leafs in the front, i thought coils get better articulation that the leafs WHY LEAFS??
comparing the two just in suspension setup alone....
leaf springs are pretty straight forward. beyond mounting them, there really is not much else to do suspension-wise. they require an axle mounted spring perch, a shackle hanger either forward or back, and another hanger opposite of the shackle mount. leaf springs locate the axle, so additional components are not necessary. the pinion angle is dialed in with spring perch adjustment.
coils/coilovers can offer more flexibility, both in setup and function. they also take quite a bit more work to setup. start with a basic design, then calculations, then frame and axle mounted control arm brackets, then coil brackets both axle and frame, if you don't go with a 4link then a trac bar to locate the axle laterally, construction of control arms, a sway bar, etc. the pionion angle is dialed in using the control arms; however, you need to get somewhat close before you start welding on coil brackets.
with coils you end up with a superior setup, but with a more complex system, higher cost, and more time and fabrication. so given you have that, coils/coilovers are the better way to go. however, if your fab skills are not up to par, and your pockets are not deep enough, you can build a leaf sprung system very easily and cheaply and have a tried and true system that will get the job done.