When I rebuilt my Slim Jim transmission I used Dexron Mercron in it. I have never heard of a clear transmission fluid.
If your intake is cracked you can have it repaired. I had the intake and exhaust manifolds on my car repaired at a local welding shop. They did and excellent job. 
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"Some men are Baptists, others Catholics. My father was an OLDSMOBILE man." Ralphie Billingsley A Christmas Story 1983
"We rei-eign, supreme, ooooh god! Burrito supreme, and a chicken supreme, and a CUTLASS SUPREME!" Tenacious D 2007
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