I paid $10/quart for GM Syncomesh from D&D Performance for my Tremec 3550 which takes 3 quarts.
I think that Hanlon Motorsports has it for $7 or $8 a quart.
I purchased the fluid from D&D because I purchased everything at one time (Tremec tranny, steel bell, speedo gear, fluid).
D&D's number is (248) 926-6220.
Hope this helps.
E
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1991 5.0 LX Coupe - 38,000 miles
13.17 @ 106.14 mph w/ 2.138 60'
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