Driver side (left side) looking up from underneath the vehicle and in front of the muffler. as you can see the exhaust hanger bracket will keep you from backing the bolt out with a ratchet (pneumatic or manual). it may be possible to do this if you drop the sub-frame (sub assembly?) but this will have to involve taking loose the muffler to get it out of the way as well. easiest way would be a wrench and even that would be close quarters!!! the outboard is just as straight forward as the passenger side (right side).