The 9" when done with good aftermarket parts is obiviously the cream of the crop. However for 95% of us here the Dana 60 is a cheaper option. We aren't changing ratios at the track. Though if you set up a 2nd set of gears it would be about as quick. And WAY WAY cheaper. In fact most here can probably get good service life from an 8 3/4. Dollars are hard to come by. Spend them wisely. Doug
