does any one know if the springs and struts are interchangeable from all 4g's? and are there any differences as far as performance/handling?
The springs are the same, and the front struts are the same, but the rear struts are different in series 1 and 2 ST162s. I dont think there would be any difference in handling between them.
Sorry do you mean just changing out the internals of the strut? does it have a removable cap? and what do you change it out with?