Make sure your hex tool fits tightly into the drain plug. Plug may need cleaning. 
Some hex tools have rounded edges on the tip. I have found that grinding the tip rounded edges flat will give a better bite on the plug for removal. 
Remove the fill plug. Remove the drain and catch old oil. 
Clean drain plug and magnet and reinsert. 
Fill with new gear lube. And insert fill plug. 

Bob

1986 Syncro ‘Bullet’
1991 WESTY ‘Sylvan’

> On Jun 21, 2022, at 23:36, Eric Caron <ericcaron96@comcast.net> wrote:
> 
> Good point! And, not something I would have thought about, but I will now remember.
> 
> And, should I ask you how you know this?
> 
> Now what is the rest of the process?
> 
> Eric Caron 
> 
> 
>> On Jun 21, 2022, at 10:39 PM, Dan N <dn92610@GMAIL.COM> wrote:
>> 
>> Rule #1 when changing the oil of a manual transmission is removing the top
>> filler plug first.
>> If you can't do that then you still oil in there to drive a shop. If you
>> drain the oil and can't refill then you will need a tow.