12-bolt OR 9"? Which is best?
I was also debating on which one to go with, but after reading this thread I think I am going with a 9". Very informative thread. I was also wondering if the posi unit makes much of a difference i.e. auburn vs. what evr they come with?
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Sounds like you have made up your mind but, IMO the 9" is a better rear, I was like you were a year or two back, I was figuring on 450-500 but sometimes your plans don't get to where you want them to, sometimes they go further. The 9" will be there when you are ready to go for more, if you ever do. That will be something that you don't have to worry about if/when you decide to go for more power.
Also, the gears are a breeze to change. I have 3 sets of gears for 3 purposes. I run 2.73 on the freeway/highway, 3.73 when street racing, and 4.56 at the track. It makes a hug difference. Only thing, have something to tune the speedo with if you're planning on doing this.
9"=Good Choice IMO
Also, the gears are a breeze to change. I have 3 sets of gears for 3 purposes. I run 2.73 on the freeway/highway, 3.73 when street racing, and 4.56 at the track. It makes a hug difference. Only thing, have something to tune the speedo with if you're planning on doing this.
9"=Good Choice IMO
11 Second Club
Joined: Aug 2003
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From: Boring Green, Kentucky
Originally Posted by JMBLOWNWS6
My 9' holds up great. I have a 3 channel setup so I dont have ABS anymore. But it is awesome. I have 33 splines with the locker and racecut 4.11's 
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TECH Enthusiast
Joined: Apr 2004
Posts: 749
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From: Chandler, Arizona
Originally Posted by 2000_LS1
Call Moser, I'm sure they will help you out for the right amount of money, sponsors proably would too.
Hello,
Sorry but, NO we are not going to make one, there is no way to get the
3 Channel ABS to work correctly and line up right.
Thank you,
Ernie Stevens
Moser Engineering
The Leader in Hi-Performance Rear-End Components
Are Currie products good? I've been looking at Currie as a source for 9" rear...I know know they have Stage I-IV rears both 12 bolt and 9" which are customizable...is there any reason NOT to bo with Currie 9" or 12 Bolts? I don't have to but, I've considered giving up the ABS/TC completely. 
Last edited by alllooks; Jul 22, 2005 at 06:42 AM. Reason: More specific...
So if you have a 3 channel Abs system a 12 bolt is the only way to go..... Well out of the two Mfg's of 12 bolts which one is better? Moser or Strange and are they ready to drop in when delivered?
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I've heard and read that a Strange housing with Moser gears or Moser housing with Strange gears are the best way to go in 12 bolts. Not sure which one though. I think the latter.
Personally I would swap it over to a 4 channel and get a 9"
Personally I would swap it over to a 4 channel and get a 9"
well all LT1's that have abs or TCS came with a 3 channel system... we got just a ring around the unit and it detects wheel speeds for both wheels, now how could we swap to the 4 channel?? it would require us to add 2 rear sensors and the harness for it Right? thats why im lookin for a 12 bolt.
11 Second Club
Joined: Sep 2004
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From: Richmond VA
Originally Posted by JMBLOWNWS6
My 9' holds up great. I have a 3 channel setup so I dont have ABS anymore. But it is awesome. I have 33 splines with the locker and racecut 4.11's
TECH Apprentice
Joined: Jul 2005
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My 9" does great. I have a 31 spline though. I launch at 3500-4500 rpm about every other weekend, AT LEAST, and for 10-15 times a night. I have had it for say 6 months or so, I installed everything over the winter, and no problems yet, knock on wood.
