Solved

[Nick's e30]

So I'm currently having a BITCH of a time trying to remove my shifter rod on my early model eta. Are the bolts connecting the rod to the tailshaft of the trans hex bolts, and if so, what size are they?!?

Nick

[Butler]

8mm allen head if Im understanding your question correctly.

-better late than never.
Good luck to the next person searching this.

[Andy348]

Definitely late, but BeemerBuyer speaks the truth.