S60 Vs 12 bolt
Sorry to thread jack but does anyone know what the limit "if there is one" for the S60 is? My car is a little heavier then you F-Body guys so I'm trying to find something strong to replace my 10 bolt. Please Help.
Well strengthwise the S60-Dana 60 is the strongest then the 9" ford then the GM 12 bolt and all are better than the 4th gen F-body 10 bolt. The S60 has a 9.75" ring gear, the 9" has a 9" ring gear and the 12 bolt has an 8.875" ring gear also what posi unit and axle spline count you have determines strength. Spool = 1000+ rwhp ?, Detroit Locker = 850 + rwhp, True Trac = 600 rwhp all with 35 spline axles. You should be fine with an S60 in you Impala.
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My Moser 12 bolt whines a bit and its only got 3-4 launches on it and about 3k-5k street miles; kinda depressing actually! I have to replace the axles seals and since I have 33spline axles and no C-clips it cost me about $500.00 for the new seals (I don't have the necessary tools to do it myself). Had there been better options back in 2001 I would have gone another route. What are the options for a 99 SS M6 that has ABS and ASR (I want to keep both, the ABS and the traction control)? Some of these rears do not allow for one or the other.
I vote S60 but I'm a little biased. When I was chosing rear ends (400HP and M6) I narrowed it down to a S60 and a 9". I went with the S60 because of ease of install, could keep my torque arm, and price. I got my S60 right when they came out for 2300 to my door with DS.
223HAWK, if you are a 6 speed, I wouldn't even bother looking at the 12 bolts.
223HAWK, if you are a 6 speed, I wouldn't even bother looking at the 12 bolts.
I vote S60 but I'm a little biased. When I was chosing rear ends (400HP and M6) I narrowed it down to a S60 and a 9". I went with the S60 because of ease of install, could keep my torque arm, and price. I got my S60 right when they came out for 2300 to my door with DS.
223HAWK, if you are a 6 speed, I wouldn't even bother looking at the 12 bolts.
223HAWK, if you are a 6 speed, I wouldn't even bother looking at the 12 bolts.
FYI- all you dumb asses that dont even own a 12bolt and are bashing it should hear that LMR has had 12bolt cars go 8's and even 7's consistantly how many of yall are running even close to that E.T. buy what you want but dont bash a part you havent even owned thats how rumors get started, if setup properly a 12 bolt will live behind over 1000 horsepower. trust me ive seen it.
Last edited by strokerblackhawk; Mar 17, 2010 at 03:25 PM.
my car makes over 500 rwhp and my 12 bolt doesnt really make that much noise ive launched it from 5k with no problems but i will probably go with a spool since the true tracs are crap from what ive heard and seen.
FYI- all you dumb asses that dont even own a 12bolt and are bashing it should hear that LMR has had 12bolt cars go 8's and even 7's consistantly how many of yall are running even close to that E.T. buy what you want but dont bash a part you havent even owned thats how rumors get started, if setup properly a 12 bolt will live behind over 1000 horsepower. trust me ive seen it.
FYI- all you dumb asses that dont even own a 12bolt and are bashing it should hear that LMR has had 12bolt cars go 8's and even 7's consistantly how many of yall are running even close to that E.T. buy what you want but dont bash a part you havent even owned thats how rumors get started, if setup properly a 12 bolt will live behind over 1000 horsepower. trust me ive seen it.
I'm not saying 12 bolts are crap. They will hold up to the power (even though I have seen SOME break) but they will whine. I know that 223HAWK takes very good care of his car and would want to keep it in pristine condition, so why would I recommend something to him that may end up whining down the road?
I am not at all "bashing" the product, but in my opinion I don't think it is for him. My S60 has seen HARD launches and is still as quiet as a stock rear end and I think that is what 223HAWK would want.
Sure I have seen plenty of "race" cars running 12 bolts, but when these guys don't have any feature comforts and don't care about whine, it doesn't bother them.
It really helps if you sit back and think a little before letting your fingers do the talking.
And he bought the 12 bolt i guess some of us are just more brand loyal than others after all we are driving GM cars not Mopars not to mention how much more your s60 weighs and its a complete overkill unless you drag race every weekend and drop your car from 6500rpm by side stepping the clutch, no thanks ill slip mine out of the hole and run .1 sec slower cause i really dont like breaking ****. ask me how i know and my rear end has taken some ABUSE at the track and its not loud at all although my car is extremely loud and maybe thats why i cant hear it but i still havent had any problems with it. if you buy 33-35 spline axels when you build your 12 bolt it makes a huge difference especially since most people buy 31 spline 12 bolts and wonder why they break (10 bolts usually run 28 spline axels).
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I ended up geting the 12 bolt. Spool and narrowed. Im will race it a lil this summer to get ready for Pinks! After that I dont see my self racing too much, just some street action. I like the cruzins and shows, but If I had a good track to go to, could be a different story.
The reason I went with the 12 bolt. Lighter, Dont plan on making much more power or racing every weekend. Iv found pros and cons in both.
S60 Heavy Pig, Lasts forever..but Steve at SJM said that Id have to change my driveshaft and I just spent a lot of time polishing that thing up haha!!
Me and Steve talked a lot before I ordered one and he helped me out a lot!
Will the 12 bolt make noise? Probably after a few hard launches, but the car is soo loud now I probably wont hear it!
I could say IMO keep all GM cars GM but look at the LS engine..very similar to a SBF..
The reason I went with the 12 bolt. Lighter, Dont plan on making much more power or racing every weekend. Iv found pros and cons in both.
S60 Heavy Pig, Lasts forever..but Steve at SJM said that Id have to change my driveshaft and I just spent a lot of time polishing that thing up haha!!
Me and Steve talked a lot before I ordered one and he helped me out a lot!
Will the 12 bolt make noise? Probably after a few hard launches, but the car is soo loud now I probably wont hear it!
I could say IMO keep all GM cars GM but look at the LS engine..very similar to a SBF..
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I could say IMO keep all GM cars GM but look at the LS engine..very similar to a SBF..[/QUOTE]
I thought the same thing. Thats why I went with a MWC 9" with strange parts doesnt say Ford anywhere on it.
I thought the same thing. Thats why I went with a MWC 9" with strange parts doesnt say Ford anywhere on it.
my car was extremely loud and you heard the 12 bolt, got real annoying but you get use to it. I MEAN LOUD, really bad in 5th gear at about 50mph. Not saying its going to happen to you but my 4.11's were loud and I bought it new set-up from moser. They say they are performance gears set-up for exactly that. good luck but I hope you dont have that problem, I take good care of my car but I drive it hard so dont give me some bs saying the fluid was low or anything like that. Most 12 bolts wine, its not on the outside of the car that you hear it either, its in the interior.
Bingo. Based on the mod list in your sig, exhaust, you wouldn't be able to tell what is loud or not. I have run both in my old car, 12 bolt and 9", so I can speak from experience. I would never buy a 12 bolt again. They get loud after you beat on them. Went through 3 sets of gears on my 12 bolt before I got sick of it and sold it. Bought a Moser 9" with 35 spline axles, 457's and a locker. There was a slight increase in noise after break in, but it was still very quiet while cruising. You can build a 12 bolt to hold the power. Keeping it quiet while doing so is a different story.....................
Correct me if Im wrong, but dont you have to modify or replace your driveshaft to run an s60? If so that alone is a few hundred bucks putting the s60 up in the price range of a 9" or 12bolt.
Also has anyone heard of having bad gear whine in an S60?
Lastly, whats the weight difference between the s60 and other rear ends?
Also has anyone heard of having bad gear whine in an S60?
Lastly, whats the weight difference between the s60 and other rear ends?
Correct me if Im wrong, but dont you have to modify or replace your driveshaft to run an s60? If so that alone is a few hundred bucks putting the s60 up in the price range of a 9" or 12bolt.
Also has anyone heard of having bad gear whine in an S60?
Lastly, whats the weight difference between the s60 and other rear ends?
Also has anyone heard of having bad gear whine in an S60?
Lastly, whats the weight difference between the s60 and other rear ends?
Weight difference is like 40-50 lbs more if I recall correctly. 
