hi Krieger, im afraid i am not sure what you mean by shims?.. but here is a pic of the starter and i think it just bolts in at the top and has a nut and washer holding it in place at the bottom. regarding the relay,. it looks like something someone has added (i cant see subaru putting a relay in that position, and there is not relay or whole for a relay in my van). does your van have added fog lights? or maybe it is to do with your push button ignition? does that still work now the wires have come off the relay?