I read all the posts I could find about battery relocation to the trunk but can't find the answer to this. I am using the Summit kit and would like to know where people drilled their holes so that they could reach them from underneath the car (to fasten the nut and washers to the j-bolts). I'd like to do it under the rear strut bar but I cannot seem to reach that area from underneath the car. Seems to be too many things in the way. Can anyone who has done this successfully help me out here? Thanks.

 

I have the same kit, my battery is mounted on the passenger side. One of the holes is right next to the dip for the spare tire. This bolt is very easy to reach for putting on the nuts.
My second bolt hole comes out above the differential. Not good, but if I need to remove my battery I just loosen the rear bolt.