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New gears for DD M6

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Old 05-03-2012, 03:53 PM   #1
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Default New gears for DD M6

I need some input about what gears to install on my DD/Weekend track car. I will be purchasing drag radials and plan on launching at 3000-4000 rpms. Are 4.10's strong enough and whats the deals with 3.90's?
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Old 05-03-2012, 05:16 PM   #2
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4.10s are fun with street tires but forget about good 60' times. If you're going to run DRs bring a trailer cause you'll need it to get home.
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Old 05-03-2012, 05:53 PM   #3
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^^^true. 4.10s' are the most popular for M6s' and sticky tires are why M6s' get aftermarket rearends of 12 bolts,9 inch, & Dana.
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Old 05-03-2012, 07:01 PM   #4
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3.90s have a tad more MPH potential. That little bit might help you stay in 4th gear when/if you add power.
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Old 05-03-2012, 08:46 PM   #5
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4.10s you will be bummed if you go smaller, but dont be trying to launch hard at the track with a stickey tire you will need it towed home for sure
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Old 05-03-2012, 10:34 PM   #6
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So 3.90's would be better for my plans. Also Ive heard that I'll need a new diff if i do 3.90's is this true and why?
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