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  1. H

    turbo 400

    So the turbo 400 that is in my 78 has the cast aluminum 6 bolt inspection cover. My new transmission I have only has the two maybe 4 1/4 inch bolts. The date code on the transmission says it's out of a 69. It has a 203 transfer case bolted to it. Is there anyway vi can use the aluminum...
  2. H

    1978 radio wiring

    Can anyone show me what the radio wiring will look like on my 78 gmc Sierra? I bought it with no radio in it and no antenna which I'm thinking is supposed to be on the side of the passenger fender I will post a pic of the wire I think it is when I can. I know at one point the truck had a radio...

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