Synthetic trans lube

[JMardy@aol.com]

I'm a big fan of Red Line synthetic gear oil, it made a dramatic difference
in the feel of the transmission in my Mazda Miata.  I would like to know if
it is safe to put in my TR250 trans (with A-type overdrive).  Has anyone used
this in their LBC?

I've been using Valvoline 80/90 Hypoid, but based on John Wroclawski's mail,
I shouldn't.  Straight SAE50? really?

John Mardesich
'68 TR250, Marin County, CA