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Aftermarket rear end.

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Old 05-13-2017, 09:09 AM
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Aftermarket rear end.

This week I am planning on purchasing and aftermarket rear end. This thread is just to see which one is highly recommended? This is a mainly drag race car. anywhere from 400 horse to well over 800 later in its life. I have been looking at the 12 volts and the 8.8 Ford because they are a little less expensive.

so if you have purchased one of these rear ends for a replacement do you like it and which one did you get

thanks
Old 05-13-2017, 09:36 AM
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Re: Aftermarket rear end.

There are so many options out there. I was a Moser dealer for 15 years, so I like their stuff. The Moser 12 bolt is a much stronger rear end than the original Chevy 12 bolt. It's good for at least 700 HP. It's also lighter than the 9 inch and Dana 60.

The 9 inch is probably the strongest, but also heavy and you will loose a little more power through friction. It's also the most expensive. There are more options for the 9 inch than any other rear end.

The S60 is a strong rear end and probably the cheapest. It comes with 35 spline axles and the ring gear is much larger than the other rear ends. If I get around to building my Chevelle I'm probably going to use one of their housings.
Old 05-13-2017, 10:25 AM
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Re: Aftermarket rear end.

I have an old Strange 12 bolt with C-clip eliminators. It suits me fine for a street car at about 580 Hp. Downsides are brake choices are limited and it leaks oil out the end of the axle shafts. You can stop the leaks by welding on axle ends with Ford floating bearing.

I bought that 12 bolt 17 years ago when 12 bolt housings were the hot item for our cars, and much less expensive than a Ford 9" which was considered exotic at the time. Times have changed and I sure as heck wouldn't pass up a 9" to get a 12 bolt.
Old 05-13-2017, 06:38 PM
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Re: Aftermarket rear end.

I very interested in the Moser 12 bolts. Look like very good rear ends and bolt up well. Reasonable prices as well. By the time I get one home and on the car it'll cost about 2700 with the options I want so that I'll handle the 400 or so hp I have now and also manage to work well with more hp down the road.

I've seen so much about the 8.8 mainly sold by hawks. Any feed back on that? Their cost is a bit less then a Moser 12 bolt out the door but not by a lot.
Old 05-13-2017, 07:12 PM
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Re: Aftermarket rear end.

If you are still planning on making 1000+ hp I would skip the aftermarket 8.8 and 12 bolts and go with a 9" or S60. 9" may be easier and cheaper since you can buy fabricated housings and piece it together from the plethora of new and used parts. I would take the S60 over the 9" if you want to keep the stock torque arm design. The S60 isn't that much more than the Hawks 8.8 so why even consider it still?
Old 05-13-2017, 07:21 PM
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Re: Aftermarket rear end.

As far as I know the 8.8 is a used Ford housing that has been modified to fit the F body. The Moser housing is completely new and much stronger than the 8.8 or original Chevy 12 bolt housing.
Old 05-14-2017, 06:05 AM
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Re: Aftermarket rear end.

Well in reality it has to handle at least 400hp now. I had plans to turbo a v8 in this car. So 800+ ratinf would be nice eventually. I don't want to spend 2500 on a rear end and regret it later.
Old 05-14-2017, 06:07 AM
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Re: Aftermarket rear end.

Originally Posted by Tibo
If you are still planning on making 1000+ hp I would skip the aftermarket 8.8 and 12 bolts and go with a 9" or S60. 9" may be easier and cheaper since you can buy fabricated housings and piece it together from the plethora of new and used parts. I would take the S60 over the 9" if you want to keep the stock torque arm design. The S60 isn't that much more than the Hawks 8.8 so why even consider it still?

the s60 is that strong of a rear end? I haven't looked into them but I will. I have a lot of phone calls to make this week because without a doubt I'm buying something this week.
Old 05-14-2017, 07:08 AM
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Re: Aftermarket rear end.

I bought a moser 12 bolt. I told them it was street only and they put hardened gears in it and it was so noisy I hated driving it. I called and they didn't care so I didn't push them. I put Richmond gears in it and it's been good for the last 7 years with no leaks or noises. The 9" ends are good for lots of brake choices.
Old 05-15-2017, 05:04 AM
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Re: Aftermarket rear end.

Originally Posted by Biledriver
I bought a moser 12 bolt. I told them it was street only and they put hardened gears in it and it was so noisy I hated driving it. I called and they didn't care so I didn't push them. I put Richmond gears in it and it's been good for the last 7 years with no leaks or noises. The 9" ends are good for lots of brake choices.
After racing yesterday I lost my first round elimination because I had a let off because the rearend was making some noises and actually almost felt like it wanted to shift the whole car to the left. It would launch fine but soundtrack it was doing this clicking sound. A good friend of mine wiped out at the thousand foot Mark earlier that day his Moser 12 bolt actually locked up at about a hundred mile an hour. Granted it was about 10 years old but the only was pushing about 500 horsepower maybe a little more. So that was scary seen that happen he's lucky he didn't roll the car completely over it really hurt himself. I have to look in the guts on that 10 bolt that I have period but I am buying a new rearend this week I am going to call Moser and also look at in S60


I have ran many many dozens of 1.6x foots with my rear I have now I think it's just time that it is done for
Old 05-15-2017, 05:42 AM
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Re: Aftermarket rear end.

$2939 is the price of a Moser 12 bolt with 35 spline stuff like I want shipped to my door. That also includes a disk brake kit with it so I can add in a prop. Valve and just hook up the lines and go.

still need to contact strange for the s60 quote.
Old 05-15-2017, 05:51 AM
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Re: Aftermarket rear end.

A moser 9" housing and axle package is 1k. Then add a center chunk, junkyard for cheap and upgrade later. Wouldn't even mess with anything else.

Midwest chassis makes a pretty sweet 9" as well.
Old 05-15-2017, 01:01 PM
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Re: Aftermarket rear end.

When I got the 35 spline axles in my hand I couldn't believe how big and heavy they were. Probably slowed down the car but I'm not sure I could do the 9" ends without them. Might not go that big if I did it over again but now I feel like I can abuse it.
Old 05-15-2017, 01:15 PM
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Re: Aftermarket rear end.

Midwest fab 9 with alum center is as light as a factory 10 bolt

I run a strange 12 bolt that has ford style ends and uses ls1 4th gen brakes. 33 spline axles and a truetrac posi
Dozens of 1.3-1.4 60 fts and street tuning wot blasts over 1000-1200 hp at 3750+ lbs. never hurt it

Buddy had a 12 bolt and makes many dozen hits a year, much more than i ever did. It would go thru about 2 ring gears a year. 1300+ whp 7 sec car. 1.2x 60's. Spool and 3.08 gear.

Ultimate longevity is a 9" or bigger ring gear if doing ALOT of drag racing hits
Old 05-15-2017, 02:31 PM
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Re: Aftermarket rear end.

Originally Posted by fasteddi
$2939 is the price of a Moser 12 bolt with 35 spline stuff like I want shipped to my door. That also includes a disk brake kit with it so I can add in a prop. Valve and just hook up the lines and go.

still need to contact strange for the s60 quote.
If you use 33 spline axles you can still use a differential for street use. If you go with 35 spline axles you are going to be limited to using a spool.
Old 05-15-2017, 03:49 PM
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Re: Aftermarket rear end.

I have a feeling im only going to be able to make these 1.64s 60 foots so many times before she goes. Its a 7.625 rear 10 bolt. Bearing support and girdle. C clip emils, moser 28 spline, 3.23 gear and a lockrite. I got this rear end about 3 years ago off a friend that did alot of work to it. I got it dirt cheep. 125 bucks. I welded the tubes tossed in a locker and ran it. But my turbo never got below 1.65 except a few times. Mainly 1.70-1.75s so the V8 now is really taking it outta the hole fast.



Old 05-15-2017, 06:04 PM
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Re: Aftermarket rear end.

I have had better luck than most i guess on 10 bolts. My 4th gen ta took many 1.6-1.7 60's at 3685 lbs on drag radial. My old 383 na took many 1.5-1.6 60's and a few 1.41-1.45 60's on spray. 3450 lbs. then same rear took a few 800 hp 1.5 turbo ramp 60 fts and tons of street time before finally chipping a worm gear.
Then a 2.73 10 bolt i did more runs in the low 1.5-1.49 60 range and 9.7-9.9 1/4 mile
Old 05-15-2017, 06:31 PM
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Re: Aftermarket rear end.

That is pretty impressive the best I have ever went with a 1.58 with the turbo setup and I was scared to be honest that it was going to start having a death wine. But it's survived so far. I contacted strange about an S60 as well they're supposed to call me back tomorrow. I'm actually leaning towards that or a Ford 9-inch just because I don't want to regret not having a rearend that can't take a lot of horsepower if I'm going to spend 2500 or $3,000 it might as well be on the best one I can get.

I do a lot of fabrication on my car and tuning, always have but I want to rearend that I can literally just bolt right in there
Old 05-15-2017, 06:59 PM
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Re: Aftermarket rear end.

You're probably going to need a new drive shaft no matter which rear end you go with. I'd recommend getting one with the 1350 u joints.
Old 05-16-2017, 02:56 PM
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Re: Aftermarket rear end.

Thanks for the recommendation. I got a quote for a s60 for 2985 shipped to the door. Not as bad as I thought it would be but i need to look at some driveshafts to consider as well. I did ask for the 1350 yoke u joint,
Old 06-23-2017, 09:05 AM
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Re: Aftermarket rear end.

did you buy a rear end? I have a moser 9" with a spool and 3.73 gears for $2000. It has a bunch of upgrades I don't understand, I'm a 12 bolt guy.
Old 06-26-2017, 06:05 AM
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Re: Aftermarket rear end.

Ended up getting a Moser 12 bolt rear end. Should be here next week. I'm excited to have a built rear end behind the v8. Then if I wanted I can finally use the t brake and 2 step.
Old 07-23-2017, 09:09 PM
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Re: Aftermarket rear end.

This thread has so much good info in it.. Although I'm still on the fence about weather or not I need a aftermarket rear end. I will be at about 500 maybe 550 horse with a n/a sbc I'm wondering if I really need to go aftermarket or can I get away with a "built" 4th gen rear end? Or even beef up the stock rear end?
Old 07-23-2017, 09:33 PM
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Re: Aftermarket rear end.

Some people have a 10 bolt that is able to live for a while with seeing lots of hard launches with higher horsepower while others grenade theirs with a stock LS and good tires. There seems to be no telling, but if you are going to drag the car and have 500 horsepower I would change the rear before you break it. If it's just a street car on street tires it could live.
Old 07-23-2017, 09:38 PM
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Re: Aftermarket rear end.

Originally Posted by Tibo
Some people have a 10 bolt that is able to live for a while with seeing lots of hard launches with higher horsepower while others grenade theirs with a stock LS and good tires. There seems to be no telling, but if you are going to drag the car and have 500 horsepower I would change the rear before you break it. If it's just a street car on street tires it could live.
thanks for the input I guess I'll start pricing out 4th gen rears and see if I can get away with being cheap until I break it. I'm not looking forward to spending 2500+ on a rear end when the day comes
Old 07-24-2017, 10:07 AM
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Re: Aftermarket rear end.

I decided that worrying about shelling out a rear end in the next ten years is not something I want to worry about, so I went with the Strange Engineering S60 Rear End, S Trac posi and 3:73 gears, Strange Engineering chrome moly 35 spline axles and the Strange Engineering chrome moly drive shaft with 1350 U joints. Expensive but, bullet proof.




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