WOW sorry for you inconveniences
The best way to install bushings
1) drive out old bushings
2) clean bore
3) polish out bore of j arm look for dents and nicks (note in the middle of j arm there is a area that has never been used because of the shorter stock bushing )
4) clean bore
5) on bushing the first .100 is stepped and should just slid in
6) before driving in check and make sure the bushings slide on the cleaned frame shafts all of them
7)The First bushing Now it is best to press them in then beating them in with a BFH but most of us do not have a press
So you will need a 27mm bolt or A 1" bolt might work as well or a headed pin that slides in the bushing so it pushes in the center of the bushing
the bushing should just >>>>Tap<<<< in to the bore. not pound if it dose the bore on the J-arm need more Polishing deburing
8) Second bushing At this time the J-Arm should slide onto the shaft with just one bushing even if its gets put on backwards
so slide it on the take the second bushing and put on the shaft and a piece of pipe or tube so you can >>>>Tap<<<< the second bushing in to the J-Arm as your doing this make sure the j-arm is not binding on the shaft by moving it up and down . this process keeps it all straight as you tapping the bushing in
Hope this helps
SpeedChaser