What rearend to get?
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12 Second Club
Joined: Jun 2006
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From: Kerrville, TX
What rearend to get? I have 325rwhp NA, and have a 150 shot coming in at 3k RPM. I was about to purchase a Dana s60, but have been reading a lot of issues with noise. This is a daily driver so I can't tolerate any excessive howling, but I don't expect it to be dead quiet either. Is the noise something minor that exhaust from LT !cats to a flowmaster would cover up?
Also, do you guys think a strange 12 bolt would hold up with 5krpm clutch dumps at the track every other month or so?
I really like the specs on the Dana, but could someone give me some idea to just how loud it is...and why they are loud?
Car is a 96 3c ABS 6 speed.
Also, do you guys think a strange 12 bolt would hold up with 5krpm clutch dumps at the track every other month or so?
I really like the specs on the Dana, but could someone give me some idea to just how loud it is...and why they are loud?
Car is a 96 3c ABS 6 speed.
Last edited by Ziptie; Oct 10, 2006 at 01:05 PM.
I wouldnt trust a 12 bolt on a 6spd car. I was also looking at a S60 but also decided to opt for the 9" instead. The S60 is a beefy SOB but there is a chance that the metal used on the housing may be soft.. causing the internals to be thrown off after a few hard launches. This is still speculation of course but I wasnt willing to drop $2K+ and take the chance, so I ordered the tried and true 9". Give Scott@DLS ---> (Sponsor) a call... great customer service and from all Ive heard he really knows how to put them together right. I cant wait for mine to get here. 
Thread Starter
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Joined: Jun 2006
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From: Kerrville, TX
Originally Posted by Ericbigmac83
Dana's are also heavier than a 9" i believe and will cost you some more hp. Just go with the 9" if you dont trust the 12 bolt
I would do a 9" but, I would like to keep my 3 channel ABS.
Last edited by Ziptie; Oct 12, 2006 at 09:34 AM.
im in the same boat i want a new rear end too, the 12 bolt would be nice, moser 12 bolt has the tq arm mount issue, people say strange had a stock mount tq arm mount but the rears are noisy? how are they noisy when they claim there set up and dyno tested and they take their time on each one before its shipped out ? then there is the 9 inch wich seems to be to be the best option but how much power dose that baby suck up? how much power will you lose with a 12 bolt? how much power will you loose with a 9 inch?
Thread Starter
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Joined: Jun 2006
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From: Kerrville, TX
From what I have found so far a Dana 60 has the least power loss at 5% Then the 12 bolts at 7% and last the 9" at a whopping 12%. If I read Injuneers post correctly (mod at camaroz28.com) the 12 bolt is with in 1% of the stock 10 bolt in power loss, and the dana 60 actually has less power loss then the 10 bolt.
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Originally Posted by Ziptie
From what I have found so far a Dana 60 has the least power loss at 5% Then the 12 bolts at 7% and last the 9" at a whopping 12%. If I read Injuneers post correctly (mod at camaroz28.com) the 12 bolt is with in 1% of the stock 10 bolt in power loss, and the dana 60 actually has less power loss then the 10 bolt.
Blah blah blah all this talk about losing power with the 9". It is not enough to tell the difference. Heck I picked up a crap load on my e.t. and picked up 2 mph on motor and 6 mph on the kit over the 10-bolt. This is going from down from 4:10's to 3:89's.
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Joined: Jun 2006
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From: Kerrville, TX
Originally Posted by TeEnAgE pHeNoM
Blah blah blah all this talk about losing power with the 9". It is not enough to tell the difference. Heck I picked up a crap load on my e.t. and picked up 2 mph on motor and 6 mph on the kit over the 10-bolt. This is going from down from 4:10's to 3:89's.
I'm not defending it, I just want constructive advice not fanboy talk. From what I have seen the Dana out does the 9 inch in every area, so I'm looking for the dirt on it.
Where are you hearing that the Dana 60 is lighter? All the information I have says it is 10-15 lbs more than a 9". It also requires a shorter driveshaft (so more $$$ to spend). If anything, it should have less parasitic loss than a 9" due to pinion placement, but still...you will be hauling around a huge piece of hardware. Looking at install pics will show you that very clearly - Speed Inc's website has some in case you need a reference.
Originally Posted by 99zman
how could a 9.75 ring gear have less loos than a 8.5 or 9 inch?? im confused?
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Joined: Jun 2006
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From: Kerrville, TX
I'm just having my DS shortened, I don't want a strong driveshaft until I beef up my tranney.
The quality is the main purpose of this thread, it is in question from the numerous noise reports, and the suspension the center section may be composed of soft materials.
The quality is the main purpose of this thread, it is in question from the numerous noise reports, and the suspension the center section may be composed of soft materials.