411 gearing in a 9inch
This is a discussion on 411 gearing in a 9inch within the Drivetrain forums, part of the LSx Technical Help Section category; I blew out my 7.5 10 bolt which is no big suprise and within the next week or so i ...
08-16-2009, 04:58 PM #1
411 gearing in a 9inch
I blew out my 7.5 10 bolt which is no big suprise and within the next week or so i will be ordering my moser 9inch. I am debating on going with either a 3.89 gear or a 4.11 gear now keep in mind i am a m6 car with a built trans and was wondering if anything else would be needed motor wise ect.... to run 411s any issues? also i have a tunnel mount torque arm... opinions much appreicated
p.s. i will be getting the detriot locker
08-16-2009, 05:08 PM #2
I just purchased the Moser 9" with Trutrac and got the 4.11 gear. I love it. I also got the BMR Trak Pac to replace the stock torque arm.
No issues here.
I was told that the 3.89 is a special cut gear and that typically it is noisier. This may be something you want to consider.
08-16-2009, 06:11 PM #3
08-17-2009, 05:52 PM #4
No reason to ever go anything less in a 9" with a 6 speed.370 CI - Twin 6766 Turbo - Jakes stage 5 4L80E - MWC 9" - Holley Dominator
Build in progress...
08-18-2009, 04:49 PM #5
thanks hi po thats what i was figuring .... plus im told to stay away from aluminum center section due to it wont hold up in the long run like the iron nodular center section will plus i believe when the aluminum center section gets hot it warps the case and makes the gears whine... but i dunno
08-19-2009, 09:01 AM #6
Ive never heard that before. I doubt it gets hot enough to do any of the above. If you have the cash, opt for the aluminum center. Its shaves some 30 pounds off.
08-19-2009, 09:10 AM #7
- Join Date
- Nov 1999
- over here...
D  V D
- 1999 trans am
08-19-2009, 02:33 PM #8
08-19-2009, 02:35 PM #9
08-19-2009, 02:50 PM #10
08-19-2009, 05:06 PM #11
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