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02-09-2012, 09:49 AM
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#1
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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will it break?
im building my nova and i was going to go with a dana60 with 456 gears but i found a 12 bolt with new 33 spline axles 4.11s posi unit c clip eliminaters for 800 bucks. i will be makin around 650 crank hp through a t56. will it handle it?
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02-09-2012, 10:08 AM
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#2
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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IMO, no because of the posi.
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02-09-2012, 10:33 AM
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#3
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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thats what i was worried about, ill see how much to put a spool in it. im feeling it might be worth it to just buy a dana60
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02-09-2012, 10:38 AM
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#4
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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At 33 splines it's probably an Eaton which is not a bad diff at all. You may be able to change up the posi to make it work with stiffer springs and better clutches but I dunno.
I wouldn't bother with the spool.
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02-09-2012, 10:44 AM
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#5
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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ill have to look into it, the spool was a little annoying when i had it in the trans am but that was with 315 tires. when i had 275 tires it actually wasnt that bad to drive around with and thats prob the max i can put on my nova also whats the difference between a full spool and a mini spool?
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02-09-2012, 10:49 AM
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#6
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,150
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they are both for the track.
I see a t56, do you plan on using this car on the street much? What is the intended useage here?
If it wasn't for the c-clip eliminators I'd want to grab that rear you mentoined, but they have issues with long term street use.
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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02-09-2012, 10:57 AM
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#7
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by Lt1_8U
ill have to look into it, the spool was a little annoying when i had it in the trans am but that was with 315 tires. when i had 275 tires it actually wasnt that bad to drive around with and thats prob the max i can put on my nova also whats the difference between a full spool and a mini spool?
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The max you can put on your nova is a 275/60.
A full spool replaces the diff. A mini spool replaces the guts of an existing diff.
Spool is not really a good idea, a mini spool is a ****ing terrible one. Puts too much stress on the diff's cross shaft.
Either option negates any of your handling upgrades.
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02-09-2012, 11:04 AM
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#8
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,150
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spools strees wheel studs too.
4.56 gears don't sound like a great idea either unless maybe the tires are real tall or the engine has all sorts of rpm range. that is why I'm asking about inteneded use.
but that 12 bolt might be a good deal. you'll probably break the t56 first.
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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02-09-2012, 11:36 AM
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#9
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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its going to be a weekend car and im going to take it to the track occasionally. i drove a lt1 6 speed car with 456's for a couple of months and it wasnt bad at all. i dont plan on taking any long trips with it. the tires are going to be 275 60 15's i was just thinking about the spool because i dont have to worry about blowing posi units and it didnt bother me at all when i drove with a spool in my trans am
Last edited by Lt1_8U; 02-09-2012 at 11:38 AM.
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02-09-2012, 11:39 AM
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#10
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by Lt1_8U
its going to be a weekend car and im going to take it to the track occasionally. i drove a lt1 6 speed car with 456's for a couple of months and it wasnt bad at all. i dont plan on taking any long trips with it. the tires are going to be 275 60 15's i was just thinking about the spool because i dont have to worry about blowing posi units and it didnt bother me at all when i drove with a spool in my trans am
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There are other options besides posi and spool.
Is this going to be a drag oriented car or a handling car?
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02-09-2012, 11:49 AM
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#11
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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drag oriented
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02-09-2012, 11:54 AM
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#12
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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I would personally go for a TruTrac.
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02-09-2012, 11:56 AM
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#13
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,150
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you could always buy that 12 bolt, assuming it is good, and use it until it breaks (if it ever even does) and then deal with the carrier later. 12 bolts can take a lot of abuse, and can be built up even stronger.
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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02-09-2012, 12:24 PM
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#14
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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i was looking into tru trac systems but thats around 450 plus installing, and if i build this 12 bolt up its going to be close to a dana60. thats where im in a split decision, i can get a brand new dana60 for around 2 and have no worries but i could save a few hundred and run a risk of failure.
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02-09-2012, 12:24 PM
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#15
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Resident Camera Guy
Join Date: Aug 2004
Location: North Jersey
Posts: 10,971
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Yes
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02-09-2012, 12:25 PM
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#16
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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Quote:
Originally Posted by ar0ck
Yes
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hey big sexy, i want a camel when you return
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02-09-2012, 05:37 PM
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#17
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Join Date: Jul 2009
Location: barnegat nj
Posts: 1,340
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dana60 &
t56 with 30spline output shaft conversion
otherwise plan on rebuilding the t56 shortly cuz it will break before the 12bolt or dana breaks.
__________________
Quote:
Originally Posted by SRGN
I never pulled into the staging beams at the track and saw a dyno in the other lane.
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South Jersey Racecraft
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02-09-2012, 08:34 PM
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#18
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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Quote:
Originally Posted by S.J.SLEEPER
dana60 &
t56 with 30spline output shaft conversion
otherwise plan on rebuilding the t56 shortly cuz it will break before the 12bolt or dana breaks.
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thats what i had planned on doing, i figured it wouldn't handle it so ive been searching for a built t56. but now its buy the rear or a trans and i need to move the car around so trans will be after the rear and motor
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02-19-2012, 08:05 PM
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#19
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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I like the idea of buying the 12 bolt and using it as it is until the posi goes, probably not for a while. When it does, then spend the money on the tru trac.
4.56s with those 28" tall tires would put you at ~2,050 rpm @ 75mph in 6th gear. In comparison, 4.30s would be 1,935 rpm and 4.10s would be 1,845 rpm.
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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02-19-2012, 10:28 PM
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#20
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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Quote:
Originally Posted by Tru2Chevy
I like the idea of buying the 12 bolt and using it as it is until the posi goes, probably not for a while. When it does, then spend the money on the tru trac.
4.56s with those 28" tall tires would put you at ~2,050 rpm @ 75mph in 6th gear. In comparison, 4.30s would be 1,935 rpm and 4.10s would be 1,845 rpm.
- Justin
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thanks for the info ![Cool](http://www.njfboa.org/forums/images/smilies/icon_cool.gif) im not sure what gearing i want to do but i just found a rear im going to look at. this is the add " 12 bolt rear we just took out of our 70 nova, rear has an eaton posi with upgraded clutches and springs, 3.55 richmond gears, 33 spline strange axles with c clip eliminators and 3 inch long 1/2 inch wheel studs.and a billet 1350 series pinion yoke, rear is in great shape and is ready to run with stock drum brakes in good shape" hes asking 1100 for it, what do u guys think
Last edited by Lt1_8U; 02-19-2012 at 10:28 PM.
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