Tranny line diameter

[bad_4dr_sho]

Any ideas what size diameter the transmission cooler line is? I'm trying to order a temperature gauge manifold, so I can run a tranny temp sender, and they offer two different sizes 5/16 and 3/8. Thanks

 

[NebraskaSHO]

There is a test port at the top of the transmission that I used for my temp gauge.

 

[E1 v2]

this might help

http://www.v8sho.com/SHO/Transmission Temperature Gauge.htm

 

[bad_4dr_sho]

awesome, thanks I never saw that post. You saved me $45.