Re: Rear End for 1966 289
Are you sure its shifting into 3rd gear? 6k at 60mph is pretty crazy. If its the stock rearend I wouldnt worry about the gears in that being a problem. Did you check to make sure the connections to the tach are all ok, does it sound like the engine is at 6k? My guess is its the transmission or shifter.
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Alex
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