I'd just put a t-fitting with the temp sender in the line to the transmission cooler. 
  
Tod 

----- Original Message -----

From: "John Rodgers" <jrodgers113@GMAIL.COM> 
To: vanagon@GERRY.VANAGON.COM 
Sent: Friday, June 26, 2015 1:53:21 PM 
Subject: Auto tranny cooling 

I would like to install a temp guage to monitor the tranny oil temp but 
don't know how to approach this.  Has anyone done this ? Can you describe 
it or provide a link? 

Thanks, 

John