Thanks J.A.

The garage is detached so I will install the ground rod tomorrow
with #6 copper. I already bought 10/3 UF and am going to start
trenching and running 1" conduit in the morning. I understand the
neutral bus bar issue but never was able to understand why the bonding
screw is to be removed. If neutral and ground are bonded at the main
panel why is it bad to bond them at the sub? Don't worry...I will
separate them but am just curious.

Rod