Re: 12 Bold Chevy & Dana 60 Rear
I was always under the impression that the larger the ring gear, the "easier" it is to turn, thus the larger ring gear rears are more efficient. Kind of like the rear sprokets on a 10 speed bike. When the chain is on the smallest sproket it takes more muscle to pedal. When it is on the largest sproket it takes much less effort to make the wheel spin.
On the other side of the token, guys were pulling their super heavy Dana's out of Cuda's and replacing them with lighter 8.75's and going faster. Not becase of rear end efficiency - because of total weight savings.
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