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V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) Driveshafts | Differentials | Gears | Rearends | Clutch | Shifters

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Old 04-23-2012, 12:35 PM   #1
Parapdrapa
 
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Lol @ Richmond gears.

All I will say is I would be embarrassed to run that company. Their quality is no longer existant.
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Old 04-23-2012, 01:28 PM   #2
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I've read a lot of threads about Richmond gears. They do seem to have issues. Just yesterday at the track someone who had a set of 3.73s for less than 2 weeks broke them. He followed proper break-in procedure and they were installed by a top-notch shop (Livernois).
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Old 04-23-2012, 01:48 PM   #3
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So far I'm still surviving with my 411's but that's probably because I've been pampering my car like somebody DIDN'T steal it!!!
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Old 04-23-2012, 05:21 PM   #4
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Richmond gear was recently bought out by the parent company of Motive gear, Midwest Truck and Auto Parts Inc. It seems as though the issues that these gears are having will soon be a part of the past. Motive gear, or Midwest Truck, rather, will take over and replace the manufacturing plant that made Richmond gears.
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Old 04-23-2012, 07:19 PM   #5
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Man lets hope so, that was painful to watch yesterday!!
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Old 04-23-2012, 07:27 PM   #6
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Man lets hope so, that was painful to watch yesterday!!
Tell us more if you know.....did it happen right at the staging light? Were slicks on the car? Auto or Manual?
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Old 04-23-2012, 07:38 PM   #7
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The car is a L99, 434 rwhp, Livernois 2c cam,ported intake,2400 stall converter,kooks,tune,Nitto Drag radials. He had already made a few passes one being an 11.99. The traction was going away later in the afternoon so he dropped his tire pressure and did a nice burnout, he said it hooked up real good and then let go just after launching. This was the first time at the track with these 3:73 gears. He also followed the break in instructions exactly as they were given to him.
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Old 04-23-2012, 07:40 PM   #8
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It's really sad that these brand new gears let go like this in an automatic no less. I really can't believe anybody even buys these gears anymore much less sells them to someone.
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Old 04-23-2012, 08:08 PM   #9
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That's what I'm saying D, it's just pathetic, I can make gears out of hard playdoe that last longer lol.

I know richmond was bought out a good while back but the quality to this point are shit.

Did I read somewhere that LPE came out with a taller set than 3.91 that fits our cars? Either way I'd rather have quality 3.91 than shit 4.11(but I reallllly want 4.11)
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Old 04-23-2012, 08:39 PM   #10
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Yeah I hear you, I'm in the same boat. If nothing else is available by this winter, I may go with the LPE 3:91 gears and the JRE posi mod.
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Old 04-23-2012, 10:17 PM   #11
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DanD sent you a pm.
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Old 04-23-2012, 11:39 PM   #12
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Im so glad I went with LPE from the jump. No need to worry. Already got too much other crap to worry about than my gears breaking or whining.

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Old 04-24-2012, 02:21 AM   #13
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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.
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Old 04-24-2012, 04:01 AM   #14
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4:11's with 650 rwhp???
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Old 04-24-2012, 06:46 AM   #15
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4:11's with 650 rwhp???
And the problem with that is?
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Old 04-24-2012, 10:41 AM   #16
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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.
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Old 04-24-2012, 11:19 AM   #17
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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...
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Old 04-24-2012, 12:19 PM   #18
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It's pretty hard to argue with that sound reasoning SSE 4 2SS, I like the way you think!!!
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Old 04-24-2012, 03:40 PM   #19
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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.
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Old 04-24-2012, 08:02 PM   #20
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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.
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Old 04-26-2012, 12:02 AM   #21
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I would say more than anything.. improper install and break in.. proper backlash and break in or BROKEN.. your choice.
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Old 04-26-2012, 12:43 AM   #22
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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 $$$
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Old 04-26-2012, 06:42 AM   #23
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These gears are not made for track racing, at least the 3:73's which is what I have. They are for street and I was told that when i ordered them. Richmond or the parent company that bought them out has more expensive gear sets that are made of stronger materials for mor $$$

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
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Old 04-26-2012, 07:27 AM   #24
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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.....
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Old 04-26-2012, 09:25 AM   #25
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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
Quote:
Originally Posted by Smirnoff View Post
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
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