Richmond 4.10 gears in the rear - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

advfire · 01-16-2011, 07:57 AM

Wanted to ask the board, It would appear that about 5 months ago Richmond was having a rash of 4.10 failures with this unit. I too had a failure of this rear but my condition was more recent seeing that I purchased the unit 5 months ago but only found the time to install it last week. My failure was within less then 500 miles of being installed...

Between all the members out there who have either changed to new 4.10 Richmond's with success or with failure. Has there been failures in the last 2 months?

I want to see if I get a replacement set would I suffer the same fate or do you think the issue was corrected by Richmond with newer units.

Please give me your thoughts... Reading all the Blogs I have found 17 cases on the board from different members who state failures, ( myself included ) but they all had there issues around July of 2010, +/- ( same time i bought mine )

Apex Motorsports · 01-16-2011, 08:01 AM

We had two customers suffer failures back during the time frame you mentioned (July-August) and since then have not heard about any more until yours.

advfire · 01-16-2011, 08:19 AM

I'm wondering if the Failure was a certain batch, it would be great to see if there was any install dates of build codes on the Richmond box that we could identify

1Camaro2SS · 01-16-2011, 09:51 AM

With 638 rwhp I'm not surprised it broke. Do these gears break with stock cars also? If so, than Richmond sucks and should stop making them.

fldrummer · 01-16-2011, 11:33 AM

Quote:

Originally Posted by 1Camaro2SS

With 638 rwhp I'm not surprised it broke. Do these gears break with stock cars also? If so, than Richmond sucks and should stop making them.

I've had mine on since May and have put almost 11K miles on them since w/ no issues. No drag racing pulls here, but plenty of hard accelleration runs.

AG454 · 01-16-2011, 11:34 AM

It seems there must have been a bad batch of gears with bad steel. Richmond has replaced all the broken gears I have read about or know about. I have one of the first sets I got in a group buy from a seller on this forum, and they are still holding up. I can't stress enough having a experienced installer put them in and a heat cycle break in period. Then change the oil again. With as much power as you have, maybe the 3.73's might be better.

advfire · 01-16-2011, 01:27 PM

During the break in the 4.10 made the car so smooth. The take off was very light compared to the stock 3.45, which with the power I was pushing made it want to jump. I liked how they made the car run and during Friday night run at the track I went from a 126 top MPH in the 1/4 to a 133 top MPH in the 1/4 ( major difference ).

I would like to use the Richmond again and I am starting to think they had a bad run during that time...

I wanted to hear if anyone had installed in the last 4 months after august.

1Camaro2SS · 01-16-2011, 04:01 PM

i was going to have my chevy dealer install a 3.73 richmond gear in my car but decided to wait for a decent quality gear to come out. who knows, gm may make one soon.

Apex Motorsports · 01-16-2011, 04:06 PM

Quote:

Originally Posted by 1Camaro2SS

i was going to have my chevy dealer install a 3.73 richmond gear in my car but decided to wait for a decent quality gear to come out. who knows, gm may make one soon.

The Richmond 3.73s have not suffered a single failure that I am aware of. I can also set you up with Lingenfelter 3.70s for the same money.

1Camaro2SS · 01-16-2011, 04:11 PM

Quote:

Originally Posted by Apex Chase

The Richmond 3.73s have not suffered a single failure that I am aware of. I can also set you up with Lingenfelter 3.70s.

Really? Well that is encouraging, I was under the impression that all richmond gears had issues on the new camaro. I will need to rethink this over. Thanks for the info apex.

Apex Motorsports · 01-16-2011, 04:14 PM

Quote:

Originally Posted by 1Camaro2SS

Really? Well that is encouraging, I was under the impression that all richmond gears had issues on the new camaro. I will need to rethink this over. Thanks for the info apex.

No problem. There was a rash of 4.10 failures back during the summer but there have not been any since, until this instance. The 4.10s and 3.73s are designed differently and the 3.73s have had zero issues. Richmond has always been known for the strength of their gears which is part of why people were so dumbfounded.

danhr · 01-16-2011, 04:44 PM

could it just be that there are no reports of 4.10 failures lately because it's winter and not nearly as many people on this forum are driving their cars right now, let alone aggressively driving them.

Apex Motorsports · 01-16-2011, 05:01 PM

Quote:

Originally Posted by danhr

could it just be that there are no reports of 4.10 failures lately because it's winter and not nearly as many people on this forum are driving their cars right now, let alone aggressively driving them.

The failures all came during a pretty tight time frame and seemed to end prior to the cold weather setting in. Richmond made some changes including their recommendations for installation and since then the failures have not been occurring.

Heliwrench · 01-16-2011, 07:04 PM

Quote:

Originally Posted by 1Camaro2SS

Really? Well that is encouraging, I was under the impression that all richmond gears had issues on the new camaro. I will need to rethink this over. Thanks for the info apex.

There was one reported Richmond 3.73 failure but no details were given.. This is the internet...

As for the Lingenfelter 3.70's, they are actually made by AAM, the same company that makes the original gears in the car. Haven't heard of one fail yet but I don't think many are running them as they are a little more costly.

01-16-2011, 07:57 AM	#1
advfire Drives: 2010 SS Black Join Date: Jul 2009 Location: Parkland, Florida Posts: 171	Richmond 4.10 gears in the rear Wanted to ask the board, It would appear that about 5 months ago Richmond was having a rash of 4.10 failures with this unit. I too had a failure of this rear but my condition was more recent seeing that I purchased the unit 5 months ago but only found the time to install it last week. My failure was within less then 500 miles of being installed... Between all the members out there who have either changed to new 4.10 Richmond's with success or with failure. Has there been failures in the last 2 months? I want to see if I get a replacement set would I suffer the same fate or do you think the issue was corrected by Richmond with newer units. Please give me your thoughts... Reading all the Blogs I have found 17 cases on the board from different members who state failures, ( myself included ) but they all had there issues around July of 2010, +/- ( same time i bought mine ) __________________ 2SS- M6 - 849 RWHP, 757 RWTQ - YSI -Supercharger - Comp Cams Stage 3 Blower Cam -54-471-11 - (In-239/624 - Ex 255/624) MTI - CAI - Meth Injection Systems using 50/50 mix - Kooks 1 7/8" Headers with 3" catted X-Pipe - Kooks muflers to tips - LSR Short Throw Shifter - NGK TR6 Spark Plugs - 160 degree thermostat - LSR Sway Bars (Front & Rear) - BMR Subframe Connectors bolt-on - DSS - lingenfelter 9" w/ 4.10P - PFADT coilover front/back - BMR Spherical Toe rods / Trailing arms - Posi lock - Last edited by advfire; 01-17-2011 at 06:00 AM.

01-16-2011, 08:19 AM	#3
advfire Drives: 2010 SS Black Join Date: Jul 2009 Location: Parkland, Florida Posts: 171	I'm wondering if the Failure was a certain batch, it would be great to see if there was any install dates of build codes on the Richmond box that we could identify __________________ 2SS- M6 - 849 RWHP, 757 RWTQ - YSI -Supercharger - Comp Cams Stage 3 Blower Cam -54-471-11 - (In-239/624 - Ex 255/624) MTI - CAI - Meth Injection Systems using 50/50 mix - Kooks 1 7/8" Headers with 3" catted X-Pipe - Kooks muflers to tips - LSR Short Throw Shifter - NGK TR6 Spark Plugs - 160 degree thermostat - LSR Sway Bars (Front & Rear) - BMR Subframe Connectors bolt-on - DSS - lingenfelter 9" w/ 4.10P - PFADT coilover front/back - BMR Spherical Toe rods / Trailing arms - Posi lock -

01-16-2011, 09:51 AM	#4
1Camaro2SS Drives: 2010 2SS/RS L99 Join Date: Sep 2010 Location: Grand Rapids, MI Posts: 1,430 View My Garage	With 638 rwhp I'm not surprised it broke. Do these gears break with stock cars also? If so, than Richmond sucks and should stop making them. __________________ 432 RWHP 391 RWTQ 12.37 1/4 mile on stock tires

01-16-2011, 11:34 AM	#6
AG454 I am not "Fast & Furious" Drives: 2010 Camaro LSX454 1LE Join Date: Nov 2008 Location: Greeley Colorado Posts: 1,040 View My Garage	It seems there must have been a bad batch of gears with bad steel. Richmond has replaced all the broken gears I have read about or know about. I have one of the first sets I got in a group buy from a seller on this forum, and they are still holding up. I can't stress enough having a experienced installer put them in and a heat cycle break in period. Then change the oil again. With as much power as you have, maybe the 3.73's might be better. __________________ The day I take a bend too fast Judgement that could be my last I'll be wiped right off the slate Don't wait up 'cause I'll be late, I'll be late

01-16-2011, 01:27 PM	#7
advfire Drives: 2010 SS Black Join Date: Jul 2009 Location: Parkland, Florida Posts: 171	During the break in the 4.10 made the car so smooth. The take off was very light compared to the stock 3.45, which with the power I was pushing made it want to jump. I liked how they made the car run and during Friday night run at the track I went from a 126 top MPH in the 1/4 to a 133 top MPH in the 1/4 ( major difference ). I would like to use the Richmond again and I am starting to think they had a bad run during that time... I wanted to hear if anyone had installed in the last 4 months after august. __________________ 2SS- M6 - 849 RWHP, 757 RWTQ - YSI -Supercharger - Comp Cams Stage 3 Blower Cam -54-471-11 - (In-239/624 - Ex 255/624) MTI - CAI - Meth Injection Systems using 50/50 mix - Kooks 1 7/8" Headers with 3" catted X-Pipe - Kooks muflers to tips - LSR Short Throw Shifter - NGK TR6 Spark Plugs - 160 degree thermostat - LSR Sway Bars (Front & Rear) - BMR Subframe Connectors bolt-on - DSS - lingenfelter 9" w/ 4.10P - PFADT coilover front/back - BMR Spherical Toe rods / Trailing arms - Posi lock - Last edited by advfire; 01-16-2011 at 05:25 PM.

01-16-2011, 08:01 AM	#2
Apex Motorsports Drives: 2000 Camaro SS Join Date: Feb 2010 Location: Louisville, Ky. Posts: 25,179	We had two customers suffer failures back during the time frame you mentioned (July-August) and since then have not heard about any more until yours.

01-16-2011, 04:01 PM	#8
1Camaro2SS Drives: 2010 2SS/RS L99 Join Date: Sep 2010 Location: Grand Rapids, MI Posts: 1,430 View My Garage	i was going to have my chevy dealer install a 3.73 richmond gear in my car but decided to wait for a decent quality gear to come out. who knows, gm may make one soon. __________________ 432 RWHP 391 RWTQ 12.37 1/4 mile on stock tires

01-16-2011, 04:44 PM	#12
danhr BAMF SS Drives: 2016 Camaro 1SS A8 Join Date: Mar 2010 Location: Ford City, PA Posts: 3,023	could it just be that there are no reports of 4.10 failures lately because it's winter and not nearly as many people on this forum are driving their cars right now, let alone aggressively driving them. __________________ 2016 1SS A8: FBO + Circle D + P1X + Meth + Tuned by Pray Performance Stock Longblock 800 SAE rwhp. 9.4 @ 145 mph.

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