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12 bolt or 10?

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Old Mar 29, 2012 | 10:50 PM
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Default 12 bolt or 10?

Whats going on guys. I got a 98 camaro z28 auto with a 323 aurburn 10 bolt in it right now. It leaks from the pinion seal, the outer bearings make a ton of noise, and i can only get a 1 tire fire out of it so i think my limited slip is gone. I got mods on my car now slp lid, tune, long tubes, no cats, and a couple of other things. I was just wondering should i go with a 12 bolt or stick with my 10 bolt. And should i upgrade to a 342 or what? I know the only one that will bolt straight up is another 10 bolt but is the 12 bolt worth it and what year vechile should i get it out of?
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Old Mar 30, 2012 | 03:02 AM
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Plenty of threads about this. Time to read up! ;-)
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Old Mar 30, 2012 | 06:31 AM
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since u have an auto car, id go with the 12 bolt with 3.73s. if u dont plan on modding it much more, you could probably get away with a junk yard 10 bolt. find one out of a 6 speed car and get 3.42s
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Old Mar 30, 2012 | 08:34 AM
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I've heard good things about the Strange 12-bolt. With an auto you should be good to go.
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Old Mar 30, 2012 | 08:48 AM
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So 342 or 373. This is my daily and i dont want it screaming on the highway you know lol. I might put a cam later down the road but i have to fix this first lol
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Old Mar 30, 2012 | 09:24 AM
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i have a moser 12 bolt with 4.11s which is a little extreme but it holds up to what u put it through i would recomend 3.55 gears which is right in the middle of what ur looking at
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Old Mar 30, 2012 | 11:28 AM
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I have 3.73's in my 98, with my A4 I run 2300 rpm going down the highway... with dumps lol.
With stock or full exhaust it wouldn't be bad in the cabin. Definitely livelier with those 3.73s
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Old Mar 30, 2012 | 12:44 PM
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342s,weld your axle tubes and rebuild/freshen it up.
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Old Mar 30, 2012 | 10:23 PM
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At this point either is a good option. A ten bolt would be easier on the budget, but a 12 bolt is gonna give you room to grow. If you decide going with a 12 bolt let me recommend contacting Carl @ CRP and pick up a Strange unit. Here's one I did recently:

https://ls1tech.com/forums/gears-axl...t-install.html
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Old Apr 2, 2012 | 09:07 PM
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Well i am am probably going to go with a 10 bolt with 342s just because i dont have money for building a 12 bolt lol. But any recomendations for building a 10 bolt to get it ready for the track/street use. And stand up to a little power?
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