Choosing Quiet rear end gears - Chevelle Tech
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post #1 of 21 (permalink) Old Mar 29th, 07, 1:40 PM Thread Starter
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Choosing Quiet rear end gears

Hi All:

In chatting with different people and searching here, I have found reference to Richmond gears being more noisy than other brands. I realize that any gear set will be noisy if improprely set-up.

Assuming that the gears were installed by an experience/competent installer, is there truly a difference in noise between gear manufacturers?

If yes, and I want a quiet gear set, what manufacturer do you recommend? This is for a 99% street driven car with 12 bolt and new eaton posi.

Thanks for any comments.

Ron Cook
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post #2 of 21 (permalink) Old Mar 29th, 07, 2:22 PM
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Re: Choosing Quiet rear end gears

the quietest gears to get would probably be from GM.

"Detroit hasn't felt any real pride since George Bush went to Japan and vomited on their auto executives, I tell you whut"

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post #3 of 21 (permalink) Old Mar 29th, 07, 9:52 PM
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Re: Choosing Quiet rear end gears

Gm gears are going to be best, but finding them isn't easy. I have had no problems with Motive Gear and US Gear. I have had 3 sets of Yukon gears for the 9 inch Ford that made some noise, but not 12 bolt gears. The 9 inch gears were all from the same batch. I have had about 2 sets of Richmond gears that made noise that I can remember.
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post #4 of 21 (permalink) Old Mar 29th, 07, 10:28 PM
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Re: Choosing Quiet rear end gears

gm's then yukon. tom

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i rebuild gm rears. www.12bolt.com
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post #5 of 21 (permalink) Old Mar 29th, 07, 11:38 PM Thread Starter
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Re: Choosing Quiet rear end gears

THanks for the comments gents.

I am considering 3.55s. Are GM gears hard to find due to they have worn out by now or people are just hoarding them?

Out of Yukon, Strange, Motive, and Richmond, which is the best value for a street car?
Thanks again.

Last edited by Bow_Tied; Mar 31st, 07 at 6:24 PM.
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post #6 of 21 (permalink) Old Mar 29th, 07, 11:43 PM
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Re: Choosing Quiet rear end gears

doesn't GM still sell those gears?
or do they just sell 7.5 and 8.5 gears any more?

"Detroit hasn't felt any real pride since George Bush went to Japan and vomited on their auto executives, I tell you whut"

-Hank Hill
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post #7 of 21 (permalink) Old Mar 30th, 07, 11:45 AM
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Re: Choosing Quiet rear end gears

i like yukons, for value and strength. tom

65 Elco 292 inline 6,EFI/turbo/intercooled

i rebuild gm rears. www.12bolt.com
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post #8 of 21 (permalink) Old Mar 31st, 07, 6:23 PM Thread Starter
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Re: Choosing Quiet rear end gears

Thanks for the feedback.

Other comments still welcome.
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post #9 of 21 (permalink) Old Mar 31st, 07, 8:08 PM
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Re: Choosing Quiet rear end gears

Ron, we run Richmond Gears and have never had a problem. I've had a dozen rear ends done by DTS in Warren MI without a single noise or failure.

I know, I should go buy a Lotto ticket.

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post #10 of 21 (permalink) Old Mar 31st, 07, 9:04 PM
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Re: Choosing Quiet rear end gears

You will find that some aftermarket gear sets are not lapped in as well as others. These will whine even when set up properly. Our GM 4.10 gears make no audible noise at all.
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post #11 of 21 (permalink) Old Apr 1st, 07, 12:32 AM Thread Starter
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Re: Choosing Quiet rear end gears

That is good to hear Tom. I had a suspicion that there may have been truth to noisy richmond gears at one time and the tale has persisted. I'd sincerely hope modern machine practices would deal with the issue. But you never know I guess. I wonder if it is a difference between NA made vs off-shore? Good luck on the lottery, if you win you have to take Shaun and I out for beer at Hooters.

Me too Keith - my GM 4.10s are quiet. I really enjoy them, but dislike driving slow on the highway, lol. I hate to change away from the stock ratio, but it is a short 1st with the M20... and someday, I want a OD trans and need a something that will match up.
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post #12 of 21 (permalink) Old Apr 1st, 07, 2:57 PM
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Re: Choosing Quiet rear end gears

Quote:
Originally Posted by Bow_Tied View Post
THanks for the comments gents.

I am considering 3.55s. Are GM gears hard to find due to they have worn out by now or people are just hoarding them?

Out of Yukon, Strange, Motive, and Richmond, which is the best value for a street car?
Thanks again.
They don't make the 3.55, for some time now. I did a casual search on Ebay and found two new sets from GM, very pricey but what are the options
post #13 of 21 (permalink) Old Apr 1st, 07, 3:48 PM
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Re: Choosing Quiet rear end gears

I have 4.10's made by Precision Gear and they are quiet. Anybody else running these?

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post #14 of 21 (permalink) Old Apr 1st, 07, 4:31 PM
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Thumbs up Re: Choosing Quiet rear end gears

I dearly love my 12-bolt's 3.31 gears!!

Wish somebody would stock re-pop them...

I can spin my tires and also go 70 mph down the highway fine, imho...

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post #15 of 21 (permalink) Old Apr 1st, 07, 7:16 PM Thread Starter
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Re: Choosing Quiet rear end gears

I priced Yukon vs Richmond today. $226 for the Yukon vs $275 for the Richmond. Are the Richmonds worth $50 more or am I paying only for the name?
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