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Yeah yeah, I know, but 10-bolt build behind an A4

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Old 03-02-2015, 12:35 AM
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Default Yeah yeah, I know, but 10-bolt build behind an A4

So, my 10-bolt is actually holding up okay, but I need more gear to help with my loose converter and my wife is telling me no on spending any more money on this car right now. But I want to do something with the 10-bolt, so it's a cheaper alternative than buying a new rear.

I already have a TA Aluminum Rear Girdle and am planning on grabbing the Italian-made Motive 3.90s with the Motive install kit. I have a Circle D 2E which hits fairly soft to keep the pressure off the 10-bolt, but I'd like to get rid of the 145k mile Torsen differential and move to either a TrueTrac, Eaton Posi, or Auburn Pro-Series.

Anybody have any insight as to which would work better? This is mostly a street toy, but I do autox and drag race too. So having a differential that works all around isn't a bad thing.

I've heard the Auburn Pro-Series is much better than the standard Auburns, which are pretty much crap in the 10-bolt. Also, it works well going straight and in a turn. I know TrueTracs are Chinese made and don't seem to be super stout either (but are the cheapest of the 3), and work well in road course situations but less than ideal in a straight line. And then there is Eaton, the most expensive of the three, and possibly the best in a straight line and worst in a corner.

Any suggestions?
Old 03-02-2015, 12:48 AM
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Hey Dude !

I have the Stock 10 bolt 7.625" 28 Spline on my 2001 Camaro Z28 AUTO4 with YANK4000 stall and I am running the LSX454+Cam+125 shot of NITROUS.... here is how the rear holds up for me...

-ALLOY USA axle shafts
-ARP Chrome molly 2.5" wheel studs
-YUKON Posi with 4.10 gears
-Royal Purple gear oil

its all on Ebay with free shipping, WAY cheaper than upgrading to a 12 bolt or 9" ford,

I hook hard and pull wheel stands, the rear end is strong and healthy, Hope this helps out some if your looking to keep your stock rear end, these upgrades make it Strong Dude
Attached Thumbnails Yeah yeah, I know, but 10-bolt build behind an A4-10845964_401272980032026_7661469282222455380_n.jpg  
Old 03-02-2015, 01:57 AM
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ARP studs are in as is RP 85W140 gear oil.

I am leaning toward the Eaton/Yukon Posi because they are pretty tough. And the Alloy USA axles I've never heard of, but they seem cheap. The Moser axles for the 4-ch are like $320. These seem to be like $100 less. Do they work with the 4-channel stuff since you have to press those onto the shafts and they have to be machined for it? They only have one PN for the 10-bolt so I'm thinking no...

Hmm...

TA Performance Girdle & Stud Kit
Motive 3.90s
Moser C-Clip Trac Control Axles
Eaton Posi
Ratech Deluxe Install kit (comes with Timken bearings it seems - complete deal for the axles as well)
ARP Wheel Studs

If that can hold 450rwhp through an A4 with Nitto drag radials, I'd be happy. Plus I'll build it in my garage and set it up right. But it also seems like I'd be pissing away money.
Old 03-02-2015, 02:05 AM
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I don't know what all that will cost you, but try finding a moser 9/12 core if your on the fence

I originally got mine for $1,300 (core)and after gears and new wheel bearings I was just under 2k for a bullet proof rear

Still a lot cheaper than 3k+ for a new one, plus I could build it in increments and didn't shell out everything at once
Old 03-02-2015, 02:11 AM
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Yeah... price on that ends up being like 1300 when you factor in what I already have. But that's if I do new axles and the Eaton Posi. TrueTrac would lower the price some more.

I really wish these things came with 12-bolts. Then a list like that one would make a pretty strong rear for a reasonable price.
Old 03-02-2015, 02:13 AM
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Originally Posted by JakeFusion
Yeah... price on that ends up being like 1300 when you factor in what I already have. But that's if I do new axles and the Eaton Posi. TrueTrac would lower the price some more.
Yes, I actually like 10 bolts though. Under 500 hp with a auto car and they're hard to beat
Old 03-02-2015, 02:25 AM
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They are light and don't eat a ton of power. I'd like to just beef it up.

A new Strange F-Body housing is about $1k... that might be the way to go eventually. Probably can build it for 2200 or so depending on how I set it up?
Old 03-02-2015, 02:37 AM
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Originally Posted by JakeFusion
ARP studs are in as is RP 85W140 gear oil.

I am leaning toward the Eaton/Yukon Posi because they are pretty tough. And the Alloy USA axles I've never heard of, but they seem cheap. The Moser axles for the 4-ch are like $320. These seem to be like $100 less. Do they work with the 4-channel stuff since you have to press those onto the shafts and they have to be machined for it? They only have one PN for the 10-bolt so I'm thinking no...

Hmm...

TA Performance Girdle & Stud Kit
Motive 3.90s
Moser C-Clip Trac Control Axles
Eaton Posi
Ratech Deluxe Install kit (comes with Timken bearings it seems - complete deal for the axles as well)
ARP Wheel Studs

If that can hold 450rwhp through an A4 with Nitto drag radials, I'd be happy. Plus I'll build it in my garage and set it up right. But it also seems like I'd be pissing away money.
Sweet ! Yeah dude, you do have some serious Upgrades the ALLOY USA axle shafts are $112.99 a piece with Free shipping, here is the link where I bought mine, they are MADE for the 4 channel ABS which is Fantastic man, yeap I had the ARP wheel studs PRESSED in at 4wheelparts, I have read that pulling the new wheel studs in with a impact gun weakens them so I have them pressed in to be safe, they charged me $40 bucks, these ALLOY USA shafts are Super Stout dude, I am running the YUKON posi and it is Fantastic too, When ever I buy more parts for the Camaro.... and i'm thinking about how much I put into it... I just think back from when I was in the Army and spent SO much money on Booze and wemon LOL putting money into a sweet and fast car is way better

•1541H
•Up To 35 Percent Stronger Than OE
•CNC Machined
•Twice The Tensile Strength Over OE
•Limited 10 Year Warranty

and Chrome molly !!!! check them out and you can talk with the builders them selves at ALLOYUSA.COM

http://www.ebay.com/itm/391048856042?_trksid=p2060778.m2749.l2648&ssPageName=STRK%3AMEBIDX%3AIT

Last edited by 2001_Z28_FUN; 03-02-2015 at 03:04 AM.
Old 03-02-2015, 09:59 AM
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Any word on the differential differences in a 10-bolt?

Yukon DuraGrip is the same as the Eaton and is cheaper and has a rebate now making it an even better deal. Still, the TrueTrac is cheaper by a few bucks. I'm still leaning to the Yukon/Eaton Posi design.
Old 03-02-2015, 11:47 AM
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Gears and rebuild kit and put together right and dont worry about the posi.
Old 03-02-2015, 12:05 PM
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The Torsen is probably the best of all of them anyway, right?

What about the axles? Just a waste at this point?
Old 03-02-2015, 12:47 PM
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Originally Posted by 2001_Z28_FUN
Hey Dude !

I have the Stock 10 bolt 7.625" 28 Spline on my 2001 Camaro Z28 AUTO4 with YANK4000 stall and I am running the LSX454+Cam+125 shot of NITROUS.... here is how the rear holds up for me...

-ALLOY USA axle shafts
-ARP Chrome molly 2.5" wheel studs
-YUKON Posi with 4.10 gears
-Royal Purple gear oil

its all on Ebay with free shipping, WAY cheaper than upgrading to a 12 bolt or 9" ford,

I hook hard and pull wheel stands, the rear end is strong and healthy, Hope this helps out some if your looking to keep your stock rear end, these upgrades make it Strong Dude
Would you mind PM'ing me a link to all that you posted above? I'm in the same boat as old Jake here.
Old 03-02-2015, 01:11 PM
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Like I said, gears, rebuild kit, assemble it right and done. Axles and posi will be fine.
Old 03-02-2015, 02:23 PM
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Sounds good.

Btw, Nate, if you search on Amazon for those axles... they are $23 A PIECE. I'd run away from them.
Old 03-02-2015, 02:31 PM
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Originally Posted by Rise of the Phoenix
Would you mind PM'ing me a link to all that you posted above? I'm in the same boat as old Jake here.
$112.99 a shaft with free shipping
http://www.ebay.com/itm/391048856042?_trksid=p2060778.m2749.l2648&ssPageName=STRK%3AMEBIDX%3AIT

$35.76 set of ( 10 ) + shipping to your state
http://www.ebay.com/itm/381156376165?_trksid=p2060778.m2749.l2648&ssPageName=STRK%3AMEBIDX%3AIT
$674.98 with free shipping, and Yukon is super Stout
with your choice of gear Ratio
http://www.ebay.com/itm/GM-Chevy-7-5-Posi-Package-Yukon-Duragrip-Ring-and-Pinion-Ultra-Kit-28-Spline-/281250256071?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A2001%7CModel%3ACamaro&hash=item417bd254c7&vxp=mtr

and Royal Purple gear oil 85W140 with posi additive

Last edited by 2001_Z28_FUN; 03-02-2015 at 02:36 PM.
Old 03-02-2015, 02:39 PM
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Thanks. I'm M6 though. Think it would hold up, or am I just pissing away money?
Old 03-02-2015, 02:46 PM
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Btw, Summit has the Yukon for $471 with a $35 mail in rebate and $45 in summit bucks to be used on your next purchase. So it's like getting $70 off...

In an M6, I wouldn't bother. Nor would I spend money on a frankenstein 8.8.

Just grab the Strange S60. It's cheapest of all aftermarket rears. And probably the most beastly. Get it with an S-Trac tho.
Old 03-02-2015, 02:50 PM
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Originally Posted by Rise of the Phoenix
Thanks. I'm M6 though. Think it would hold up, or am I just pissing away money?

yeah man, there's always Yukon shafts or something name known, ALLOY USA shafts are more of a "OFF ROADING" Company you can see their web site at ALLOYUSA.COM

$184.82 with free shipping
http://www.ebay.com/itm/Yukon-Gear-Axle-YA-G26059972-Axle-Shaft-98-02-Camaro-Firebird-/151270737630?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A2001%7CModel%3ACamaro&hash=item23387046de&vxp=mtr
Old 03-02-2015, 02:52 PM
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Originally Posted by JakeFusion
Btw, Summit has the Yukon for $471 with a $35 mail in rebate and $45 in summit bucks to be used on your next purchase. So it's like getting $70 off...

In an M6, I wouldn't bother. Nor would I spend money on a frankenstein 8.8.

Just grab the Strange S60. It's cheapest of all aftermarket rears. And probably the most beastly. Get it with an S-Trac tho.
Dude !!! that is a way better price than Ebay !
Old 03-03-2015, 08:38 AM
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Guys! Save up n buy an S60, all ur doing is band aiding a 10 bolt... yeah it sucks not having a bullet proof rear now, but y waste hard earned $ on a rear that WILL break no matter what parts u throw at it! JUST SAVE UP FOR A S60! Trust me!


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