View Full Version : New gears for DD M6

05-03-2012, 04:53 PM
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? :confused:

05-03-2012, 06:16 PM
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.

05-03-2012, 06:53 PM
^^^true. 4.10s' are the most popular for M6s' and sticky tires are why M6s' get aftermarket rearends of 12 bolts,9 inch, & Dana.

05-03-2012, 08:01 PM
3.90s have a tad more MPH potential. That little bit might help you stay in 4th gear when/if you add power.

05-03-2012, 09:46 PM
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

05-03-2012, 11:34 PM
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?