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has anyone done a five speed swap behind a big block. i am thinking of doing this in my 68 fastback. will i retain the stock bellhousing and use an adapter plate. thanks
 

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You will need to use a beefy trans, like a Tremec TKO-II for a big-block car.

You will need to get a toploader bell housing to bolt up to. Trucks are a good place to find one of these.

You can get the adapter plate from many of the online sources.

The shop I use put a TKO behind a 390 not too long ago. You might call them and pick their brains. Mustang Fever, 408-748-1337. Ask for Mitch and tell him that I suggested you call.
 
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