Here is what I've found out so fair. This is comming person who really knows his SVOs and notice that he gets some of his imfo from Ford also.
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Ford is where that info came from -- the 85 svo came with a WC --
It is in one of the Ford brochures, but I can't find it right now (and I did look)...
It is pretty easy to tell ---
take the top off the trans, if you have all brass synchros, it is a NON-WORLD CLASS T5 -- if it has 4 fiber, and one brass (5th) it is a WORLD CLASS T5
the standard mustang may have done a mid-year swap-over, but the 85 SVO should have a World class T5.
EDIT -- here is a pretty reputale source for ya, and it specifically mentions the SVO
http://www.moderndriveline.com/Tech.../t5_history.htm
__________________
Eric C
86 1E & 85 4E -- Soon to be green again!
SVOCA Webmaster