12 Bolt keeps breaking- NEED HELP

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Mar 1, 2008 | 01:17 PM

2000 cam'n SS

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Staging Lane

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From: angleton

12 Bolt keeps breaking- NEED HELP

What Rear End do i need for a six speed car? I currently have a 12 bolt but now have broke the spider gears twice in it in the last 4 months....I need something that will hold to a 6000 Rpm Launch with nitrous? Car makes about 550 and proabably close to 650 on the torque side...Please help

Mar 1, 2008 | 01:18 PM

MeentSS02

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From: Dayton, OH

It isn't the rear end so much as it is your choice of a posi. You should be looking at a locker or a spool doing what you are doing.

Mar 1, 2008 | 01:20 PM

2000 cam'n SS

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Staging Lane

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From: angleton

Ok what is the best choice? Im not really worried about drivabillity issues at all

Mar 1, 2008 | 01:25 PM

MeentSS02

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From: Dayton, OH

Spool if you don't care about driveability.

Mar 1, 2008 | 03:34 PM

wrd1972

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With that power and a six speed, you need a 9" rear or D60. No wonder you are busting **** up.

Mar 1, 2008 | 03:39 PM

MeentSS02

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Quote:

Originally Posted by wrd1972

With that power and a six speed, you need a 9" rear or D60. No wonder you are busting **** up.

Bullshit. Read his post. He keeps breaking the posi, and that would happen even if he was running a posi in the 9" or D60.

Mar 1, 2008 | 03:40 PM

94 guy

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Mar 1, 2008 | 05:07 PM

wrd1972

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From: Central Kentucky

Quote:

Originally Posted by MeentSS02

Bullshit. Read his post. He keeps breaking the posi, and that would happen even if he was running a posi in the 9" or D60.

Uh, I read it many times. 6K RPM nitrous clutch dumps and making 650 RWTQ.

I will try again.
With that power and a six speed, you need a 9" rear or D60. No wonder you are busting **** up.

The 12 bolt is on the ragged edge of continuous breakage here and it would be foolish to throw good money on bad money considering the overall situation.

Mar 1, 2008 | 05:08 PM

#10

MeentSS02

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From: Dayton, OH

Quote:

Originally Posted by wrd1972

Uh, I read it many times. 6K RPM nitrous clutch dumps and making 650 RWTQ.

I will try again.
With that power and a six speed, you need a 9" rear or D60. No wonder you are busting **** up.

And what exactly are you basing this on? What Bob @ EPP spouts off? Horseshit.

Mar 1, 2008 | 07:18 PM

#11

wrd1972

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From: Central Kentucky

Quote:

Originally Posted by MeentSS02

And what exactly are you basing this on? What Bob @ EPP spouts off? Horseshit.

My magic 8-ball says so.

Mar 1, 2008 | 07:45 PM

#12

jakesz28

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From: iowa

I would say a spool is needed and a set of progears if your not currently running them. Street gears are a little harder and will be the next week point if you go to a spool.

Mar 1, 2008 | 08:04 PM

#13

tillery

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From: Texas

Are you saying you have 6" pistons, wow one hell of an overbore, and choking it down with a 52mm throttle bodie? anyway there are lots of single digit race cars running a 12bolt, making more power and torque. once he disasembles the rear and insp everything and build it for what he wants it wont flinch. and also a 9" also needs a back brace too make it stronger so the axle tubes wont flex and break them.

Mar 2, 2008 | 12:42 PM

#14

2000 cam'n SS

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Staging Lane

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From: angleton

Yeah well when i got home that night from the track i opened up the rear to see what happened and on all the teeth off one of the spider gears is all gone....What is wierd is i have never seen fluid as mattalic silver as this....As soon as i popped the rear at the track i shut the car off and maybe pushed it a total of 50 yards so im thinking that i might have had a problem that existed before i arrived to the track...Last time out to the track it was holding up fine to a 1.5 sixty on motor i just guess that 13 PSI in a 10.5 slick and 125 shot out of the hole was too much.....You gotta pay to play lol