Tyler,
The 67 and 80 SG are the same hole pattern. The 90/100 SG has the 2 top holes on the same 2" centers, but the lower center hole is off about 1/8".
The 67 and 80 SGX both have the same top 2" on centers pattern, except the lower center hole is raised about .090" higher than the SG 67 and 80 location.
I forgot to check the 90/101 SGX, but it is probably about the same as the SG 90/100.