HO52 Eaton No-spin in 4.10 vs 4.57 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1968_K20_4x4 · 12-11-2018, 03:44 PM

Ok guys so I need some info on the Eaton No-spin units. I currently have a 4.56 rear gear in my HO52 with a No-Spin unit.

If I had a complete 4.10 gear 3rd member, can I simply remove the no-spin unit from my 4.56 3rd member and instal it in the new 4.10 third?

I've been told by my local shop that they would be different and that it wouldn't work like that because the carriers are different. But I thought all no-spin units were the same for these trucks and the gear ratio didn't matter.

So I need to know once and for all... are the no-spins specific to different gear ratios? Or are they all the same unit and will work with whatever gear ratio you have?

Anyone able to clear this up for me?

Thanks!!

**jeffahart** · 12-11-2018, 06:30 PM

4.10 and down vs 4.56 and up should be a different part number. Go to the Eaton site and lookup the applications for the Detroit lockers.

j

**dozerbill72** · 12-11-2018, 08:36 PM

The No-spin unit it's self is the same no matter what gear ratio you have. The actual carrier may be different from ratio to ratio, but the No-spin goes in side the carrier.

1968_K20_4x4 · 12-12-2018, 03:43 PM

Thanks for the info guys

jfnar · 12-12-2018, 05:55 PM

This article might be helpful.
https://www.stovebolt.com/techtips/a...Ton%20Upgrade/

12-11-2018, 03:44 PM	#1
1968_K20_4x4 Registered User Join Date: Oct 2016 Location: Ontario Canada Posts: 191	HO52 Eaton No-spin in 4.10 vs 4.57 Ok guys so I need some info on the Eaton No-spin units. I currently have a 4.56 rear gear in my HO52 with a No-Spin unit. If I had a complete 4.10 gear 3rd member, can I simply remove the no-spin unit from my 4.56 3rd member and instal it in the new 4.10 third? I've been told by my local shop that they would be different and that it wouldn't work like that because the carriers are different. But I thought all no-spin units were the same for these trucks and the gear ratio didn't matter. So I need to know once and for all... are the no-spins specific to different gear ratios? Or are they all the same unit and will work with whatever gear ratio you have? Anyone able to clear this up for me? Thanks!! __________________ '68 Chevy K20 '72 Chevy K20 - Smokin' Ochre '08 Mercury Grand Marquis - Daily driver/ Parts fetcher Ohh uh, I didn't have time to fix everything... Last edited by 1968_K20_4x4; 12-11-2018 at 03:50 PM.

12-11-2018, 06:30 PM	#2
jeffahart Senior Member Join Date: May 2012 Location: Scottsdale, AZ Posts: 1,881	Re: HO52 Eaton No-spin in 4.10 vs 4.57 4.10 and down vs 4.56 and up should be a different part number. Go to the Eaton site and lookup the applications for the Detroit lockers. j __________________ White K20

12-11-2018, 08:36 PM	#3
dozerbill72 Senior Member Join Date: Oct 2015 Location: Berryville Arkansas Posts: 402	Re: HO52 Eaton No-spin in 4.10 vs 4.57 The No-spin unit it's self is the same no matter what gear ratio you have. The actual carrier may be different from ratio to ratio, but the No-spin goes in side the carrier.

12-12-2018, 03:43 PM	#4
1968_K20_4x4 Registered User Join Date: Oct 2016 Location: Ontario Canada Posts: 191	Re: HO52 Eaton No-spin in 4.10 vs 4.57 Thanks for the info guys __________________ '68 Chevy K20 '72 Chevy K20 - Smokin' Ochre '08 Mercury Grand Marquis - Daily driver/ Parts fetcher Ohh uh, I didn't have time to fix everything...

12-12-2018, 05:55 PM	#5
jfnar Registered User Join Date: Jul 2009 Location: Jonesboro, AR Posts: 410	Re: HO52 Eaton No-spin in 4.10 vs 4.57 This article might be helpful. https://www.stovebolt.com/techtips/a...Ton%20Upgrade/



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