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Old 08-15-2012, 11:27 PM
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The lucas stuff Part#10001 is pretty good stuff. It's kinda like the old power punch. It's not a "cure all" by any means. If you have a clunk I doubt any gear oil or mixture will make it go away.

You could drain the oil and look for signs of excessive wear. If it looks good I'd use a little of the oil stabilizer and a good standard 80/90 or 85/140.
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