thought I would share my experience on replacing the vacuum motor on my 3100, not the easiest thing I have done, radio grill must come out, easy to get the old one out not so easy to bolt the new one in, its huge and and needs shimed downward. New motor didnt clear the OEM choke cable so that got replaced with a new one that was longer with more slack, new motor didnt come with all the hardware needed, support bracket isn't bent correctly so that need tweeked. crank on the new motor fell off while installing it because the factory didnt tightened the set screws, check yours first....., wipers park in a different position every time, needed some TLC to make that go away, new wiper knob didnt fit the new switch had to drill that out
