Knocked out the rear bag mounts over the weekend. Took about 3 days on and off.
To center the bag on the trailing arm required the top bag mount to both be trimmed and also to recess it into the frame rail with a backing / boxing plate.
I used a long threaded rod setup to help align everything.
Amount I had to trim from upper bag mount.
I later went back and added a piece between the top of the bag mount and edge of the frame rail.
Both sides done. You can see the burn in marks on the top of the frame rail in this picture that shows where the boxing plate is located.
This cross bar was later moved to the rear of the bag mount.
