Lol @ Richmond gears.

[Squintz Palladoris]

Originally Posted by Parapdrapa

4:11's with 650 rwhp???

And the problem with that is?

[The 2010 Sin]

im over 500 to the rear NA with the 4.11's and I beat the death out of them on a daily basis.. 7.8mpg worth of death and they're holding up strong as ever.

[SSE 4 2SS]

Originally Posted by Squintz Palladoris

And the problem with that is?

IMO, there is a point of diminishing returns...

for example, it would be crazy to have a 4.xx gear in my car as it would be virtually impossible to get traction... and if I did get traction, it would go through the gears so fast that I could conceiveably be in 5th gear in the 1/4 mile...

The best way IMO to determine gear selection is to decide what gear your car is going to run as top gear in the quarter mile, and then try to get the car into and close to red lining out in that gear at the finish line.

with my current power and soon to be new power, I went with a 3.07 gear in mine and taller gears in the trans so I can get more than a few feet off the line before shifting out of first...

[DandD]

It's pretty hard to argue with that sound reasoning SSE 4 2SS, I like the way you think!!!

[fldrummer]

Originally Posted by The 2010 Sin

im over 500 to the rear NA with the 4.11's and I beat the death out of them on a daily basis.. 7.8mpg worth of death and they're holding up strong as ever.

28k miles and counting on mine with 2 track passes and I beat on mine regularly too.

[Parapdrapa]

Originally Posted by The 2010 Sin

im over 500 to the rear NA with the 4.11's and I beat the death out of them on a daily basis.. 7.8mpg worth of death and they're holding up strong as ever.

I'm interested to find the variable causing failure.

[The 2010 Sin]

I would say more than anything.. improper install and break in.. proper backlash and break in or BROKEN.. your choice.

[craigd853]

Originally Posted by Parapdrapa

I'm interested to find the variable causing failure.

These gears are not made for track racing, at least the 3:73's which is what I have. They are for street and I was told that when i ordered them. Richmond or the parent company that bought them out has more expensive gear sets that are made of stronger materials for mor $$$

[Parapdrapa]

Originally Posted by craigd853

These gears are not made for track racing, at least the 3:73's which is what I have. They are for street and I was told that when i ordered them. Richmond or the parent company that bought them out has more expensive gear sets that are made of stronger materials for mor $$$

Iirc they say the stronger gears will fail with street use. It may not make logical sense but I remember a Richmond rep saying that exact thing... Before Richmond got flamed off the forum.

I'm torn which way to go, I wish LPE errrrrr aam would just make me some 4:10/4:11

[Smirnoff]

Several of us are waiting for a reliable 4.10/4.11 - only want to do this install "once"

Even looking into having the gears cryogenically frozen.....

[blazzin1]

Originally Posted by Parapdrapa

Iirc they say the stronger gears will fail with street use. It may not make logical sense but I remember a Richmond rep saying that exact thing... Before Richmond got flamed off the forum.

I'm torn which way to go, I wish LPE errrrrr aam would just make me some 4:10/4:11

Originally Posted by Smirnoff

Several of us are waiting for a reliable 4.10/4.11 - only want to do this install "once"

Even looking into having the gears cryogenically frozen.....

There IS another option out there guys. Unfortunately, it's pretty new, and there isn't a lot of feedback yet. U.S. Gear (AxleTech) just released gears for the GM 8.6 IRS (5th Gen Camaro), and they do have 4.10's available. From my research they are a tad more expensive than the Richmonds, but cheaper than the LPE/AAM Gears. I talked to Robert Angliss at AxleTech, and was given this information:

"We have gone with a material that has 300% of the nickel content of 8620 which translates into about 50% of the nickel content of 9310. Having said that, this material allows for flexibility as well as having the toughness of a heat treated 8620. As far as warranty, we will replace any defective product within 12 months that failed due to material or workmanship. Claude Plante at DTS (Drivetrain Specialists) in Warren, MI will be more than happy to set you up with price and availability on these gears. He can be reached at 586-778-0540".

Here are the gears they have (4.10's seem like the only viable option to me!):

Part Number Description Pinion Spline Steel Ratio TEETH
01-486308CM CAMARO 3.08 BEVEL SET 30 4320 3.08 40 - 13
01-486323CM CAMARO 3.23 BEVEL SET 30 4320 3.23 42 - 13
01-486373CM CAMARO 3.73 BEVEL SET 30 4320 3.73 41 - 11
01-486410CM CAMARO 4.10 BEVEL SET 30 4320 4.1 41 - 10

There is one guy here on Camaro5 that has purchased and installed these gears. So far, he says he's very happy with them. Here's his thread:

http://www.camaro5.com/forums/showthread.php?t=210502

I am interested to hear about some more feedback on these as well. If they prove to be much more reliable than the Richmond's (probably not too hard to do at this point), then I might go this route rather than a full rear end conversion. Lemme know what you guys think or find out about these gears!!!

Keith

[Dave Coyle]

Originally Posted by usmcjlp

Geez another Richmond Gear bashing thread! I must be the only one with the opposite experience. I had the LPE 3.70 with Jannety's posimod, worst decision I have made with this car. The only mod that did damage and had to be redone. Gears were noisy.

If your car sees the street, don't do the posimod. My shop works with Ted and they discussed my build. I was told it wouldn't affect the driving characteristics. Once that posimod went in, I had a lot of chatter from my rear tires. I also had a horrible shake from the rear on launch. We spent a lot of time on the phone troubleshooting with Ted, only to be told that's normal with a posimod.

I ripped it out and went to the 4.11s with no posimod. I haven't had an issue since. I have a whipple, cam, and headers. Currently at 650+ rwhp.

I saw your post on another site and I will say that it really sounds like it was the "posimod" that was your problem!! I was the guy that they are talking about with the Richmond gears!!! I did the proper break-in and even did a little more to make sure it was fine!!!! I ran it on the street a couple times before the strip and it was fine but on the 6th pass at the track she was toasted!!! Oh, for the record, Richmond states that they DO NOT recommend their gears on the strip do to failure!! The did state that the 4.11 is holding up so far. I also have a 1970 Z-28 that I installed a Richmond gear in almost 20 years ago and it see's mostly track use, I have had no problems with it!! Richmond has stated that it is ONLY the 2010 Camaros that they are having a problem with!!

[Smirnoff]

Originally Posted by blazzin1

There IS another option out there guys. Unfortunately, it's pretty new, and there isn't a lot of feedback yet. U.S. Gear (AxleTech) just released gears for the GM 8.6 IRS (5th Gen Camaro), and they do have 4.10's available. From my research they are a tad more expensive than the Richmonds, but cheaper than the LPE/AAM Gears. I talked to Robert Angliss at AxleTech, and was given this information:

"We have gone with a material that has 300% of the nickel content of 8620 which translates into about 50% of the nickel content of 9310. Having said that, this material allows for flexibility as well as having the toughness of a heat treated 8620. As far as warranty, we will replace any defective product within 12 months that failed due to material or workmanship. Claude Plante at DTS (Drivetrain Specialists) in Warren, MI will be more than happy to set you up with price and availability on these gears. He can be reached at 586-778-0540".

Here are the gears they have (4.10's seem like the only viable option to me!):

Part Number Description Pinion Spline Steel Ratio TEETH
01-486308CM CAMARO 3.08 BEVEL SET 30 4320 3.08 40 - 13
01-486323CM CAMARO 3.23 BEVEL SET 30 4320 3.23 42 - 13
01-486373CM CAMARO 3.73 BEVEL SET 30 4320 3.73 41 - 11
01-486410CM CAMARO 4.10 BEVEL SET 30 4320 4.1 41 - 10

There is one guy here on Camaro5 that has purchased and installed these gears. So far, he says he's very happy with them. Here's his thread:

http://www.camaro5.com/forums/showthread.php?t=210502

I am interested to hear about some more feedback on these as well. If they prove to be much more reliable than the Richmond's (probably not too hard to do at this point), then I might go this route rather than a full rear end conversion. Lemme know what you guys think or find out about these gears!!!

Keith

The good news is I live about 45 minutes from DTS & done business with them before.....the bad news after reading story / after story / after story..... about broken replacement gears on the street & strip, I cannot volunteer to basically throw away big money $$$$$$ to be next guinea pig for poor quality.

Feel bad for all you guys who are on your 2nd & 3rd set of gears.....

[xx_ED_xx]

Maybe, this BREAK IN is new to me but how the hell you going to say. You have to break in gears. Please explain to me...

If installed correctly and made from the proper material these should give you years of duty free service. So you mean to tell me my uncle's 1920 ford 1 ton truck has a better gear set then now when you think technoilogy material and production is far superior to what it was almost a 100 years ago