06-06-2011, 07:32 PM | #1 |
Tyranny is Closing In
Drives: 2010 Camaro SS Join Date: Apr 2011
Location: N.E. Florida
Posts: 189
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AAM 3.91 Gears...Very Nice
Well, as some of you may know I've been struggling to find a rear end setup that's strong, quiet, and efficient. I started with Richmond 4.11's in the stock diff, we setup the gears 3 different times and never could eliminate the whine completely. Frustrated I decided to try the DSS 9", it turned out to be as noisy as the Richmond setup, reduced effective power, and added weight.
So, finally I decided to try AAM gears from Lingenfelter and other upgrades to the stock differential.
We finished the setup yesterday and I put about 20 miles on the gears. The AAM gears are dead silent! There's a reason GM uses them for OEM parts. Finally I have a rear end setup that works! We noticed during setup of the AAM gears that they have a much larger tooth contact pattern than the Richmond gears, and were wondering if the relatively small contact pattern on the Richmond's contribute to their noise. |
06-06-2011, 07:35 PM | #2 |
Drives: 550+RWHP 2010 camaro Join Date: Sep 2007
Location: wisconsin
Posts: 1,588
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yes the small contact area makes the setup more critical than factory cut gears
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415ci stroker, TVS 2300 Magnacharger, cnc heads, cam, yank ss3200 converter, Kooks long tubes, Bwoody true cold air kit, ZL1 Pump, magnaflow 3" cat-back, lowering springs,BMR control arms and tie rod bars, 3.73 gears, diff mounts, RX can, ADM fuel controller
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06-06-2011, 07:56 PM | #3 |
Drives: 2ss Join Date: Oct 2009
Location: Joliet IL
Posts: 250
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can u pm me the cost for this setup
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06-06-2011, 08:19 PM | #4 |
Drives: 2SS/RS CGM LS3 Join Date: Aug 2009
Location: NJ
Posts: 1,619
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I want these gears and a cam...
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06-06-2011, 09:34 PM | #5 |
Tyranny is Closing In
Drives: 2010 Camaro SS Join Date: Apr 2011
Location: N.E. Florida
Posts: 189
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I bought the gears and setup kit from Lingenfelter for a ridiculous price of $1K. The LPW cover was $250 and the posi mod was $185 from JRE. Gear oil and LS additive was another $30 for a grand total of $1,465
I did the install myself; as a mechanical engineer I told myself my degree wasn't worth the paper it's printed on if I couldn't learn to setup a ring and pinion. You could probably get the gears installed for $400-$500. |
06-06-2011, 10:50 PM | #6 | |
Tyranny is Closing In
Drives: 2010 Camaro SS Join Date: Apr 2011
Location: N.E. Florida
Posts: 189
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Quote:
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06-21-2011, 08:47 PM | #7 |
Drives: 2010 Black SS M6 Join Date: May 2011
Location: Woodbridge, VA
Posts: 66
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Can someone provide a contact for these gears outside of Lingenfelter? I have been calling all of the AAM suppliers on the east coast and they are unable to help.
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Black 2SS/RS with Silver Stripes
454 installed! |
06-21-2011, 09:36 PM | #8 | |
Drives: 550+RWHP 2010 camaro Join Date: Sep 2007
Location: wisconsin
Posts: 1,588
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Quote:
lingenfelter must have some type of deal with aam,, aam is not giving them to thier standard dealers any pics of your aam contact pattern?
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415ci stroker, TVS 2300 Magnacharger, cnc heads, cam, yank ss3200 converter, Kooks long tubes, Bwoody true cold air kit, ZL1 Pump, magnaflow 3" cat-back, lowering springs,BMR control arms and tie rod bars, 3.73 gears, diff mounts, RX can, ADM fuel controller
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06-22-2011, 10:08 AM | #9 |
Drives: victory red black stripes 2ss rs Join Date: Nov 2010
Location: new york
Posts: 50
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last time i checked you can get the 3.70s from rpm transmission you could either get the gears themselves or they sell an assembled differential which when all said and done would probably cost around the same unless you could do it yourself me personally id rather bolt on and go because i dont know of any shops in my area that do this besides maybe the dealer and im definately not going to them
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06-22-2011, 10:12 AM | #10 | |
Drives: 550+RWHP 2010 camaro Join Date: Sep 2007
Location: wisconsin
Posts: 1,588
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Quote:
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415ci stroker, TVS 2300 Magnacharger, cnc heads, cam, yank ss3200 converter, Kooks long tubes, Bwoody true cold air kit, ZL1 Pump, magnaflow 3" cat-back, lowering springs,BMR control arms and tie rod bars, 3.73 gears, diff mounts, RX can, ADM fuel controller
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06-23-2011, 02:32 PM | #11 |
Drives: anything Join Date: Aug 2010
Location: Decatur
Posts: 95
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3.91 AAM gear pricing from Lingenfelter
I can understand the possible frustration with the cost of these differential gears compared to what you may be accustom to paying for other gears but these are a low volume product that we have made by a high volume manufacturer to OEM component standards. AAM puts these through all the same QC checks they do the OEM gears. No other vehicle applications use this gear set so we can't spread the cost across many years of production and many potential customers. As you can probably imagine when having small volumes of parts produced by a company used to making 10,000 or 100,000 of parts, the setup costs are a significant percentage of the cost when you are working in low volume products. What we in the aftermarket consider to be production volumes are prototype volume levels for a company like AAM. We try to get them made in large enough batches to help keep these costs under control but that then causes us to have to hold significant inventory and have a lot of money tied up in inventory for a longer period of time.
Our retail and jobber level profit margins on the 3.91 5th Gen Camaro gears are less than our profit margin on the 3.70 gears for the Camaro and most of our other products. We did this to try and keep the retail price down. We are very pleased to have AAM as a business partner in producing these gear sets for us along with the 9.5" differentials for the Camaro. Not many OEM automotive manufacturers and suppliers are willing to work in these small volumes. Having AAM produce these parts for us has allowed us to provide 5th Gen Camaro owners with a product of a level of quality that would not exist otherwise. |
06-23-2011, 08:40 PM | #12 |
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While I certainly enjoy paying less for something of equal quality, I am a firm believer in "you get what you pay for". I think it has been proven time and time again that these AAM gears are far superior to the "other" brand out there. I have absolutely no problem paying for a quality product. My only problem.....I want 4.33's in my M6!!! I don't plan on ever having 700hp, so I want all the gear that I can reasonably put in my car. Hey LPE, can you talk AAM into making some "bigger" gears?? At least a 4.11?? That seems to be the industry standard for "performance" gears anyway. Any chance of something bigger than 3.91's coming from AAM in the future???
Last edited by blazzin1; 06-25-2011 at 10:12 PM. |
06-24-2011, 08:33 AM | #13 |
Drives: 2010 ABM SS #14 of 2,027 Join Date: Jan 2007
Location: New York
Posts: 1,217
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....what he said
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"One of the ordinary modes, by which tyrants accomplish their purposes without resistance, is, by disarming the people, and making it an offense to keep arms."
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06-25-2011, 08:09 PM | #14 | |
Tyranny is Closing In
Drives: 2010 Camaro SS Join Date: Apr 2011
Location: N.E. Florida
Posts: 189
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Quote:
Thanks for bringing those gears to market! |
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