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Old 06-20-2011, 03:42 PM   #1
bosco200
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Eaton HO-52 Help

I was wonderin where I could get 4.11s for this rear end cuz my 4.57s are horrible on gas and im red lining at about 55 mph.....I was also wondering if I could take the gears out of my dads old truck but his truck is a C10 and mines a C20....but I looked under his truck and it had a Eaton differential in there....would it work?
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Old 06-20-2011, 03:58 PM   #2
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Re: Eaton HO-52 Help

Your best bet is pull a differential from a truck with 4.10s. The whole third member swaps w/o any gear set-up. You can find the rears pretty easy and very cheap once you start looking. That rear was used for over 30 years up till '72. The C/10 will have an 12-bolt which is different. There were no 5 or 6 lug HO52s. Pre-62 1/2t GMs used a similar but lighter version.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"......

'67 C1500 SWB Wideside Super Custom: 327/M22/3.42 posi...project 'Driver Quality'
(ground-up used truck)
'72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 PowerLoc...project 'Beefy Stock'-ish
(Still original)
'85 K5/25 Jimmy Sierra: 6.2/700r4/4.10 Locker/8-lugs...project 'Jimmy'
(li'l helper,peeps hauler,& fun machine)
Tim

R.I.P. East Side Low Life ____________ R.I.P. El Jay__
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Old 06-20-2011, 05:57 PM   #3
bosco200
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Re: Eaton HO-52 Help

So the one out of the C10 wouldnt work.....it looks like a Eaton Ho52 though?
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Hopefully throwing a 383 Stroker under the hood.
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Old 06-20-2011, 09:16 PM   #4
Joesjunk
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Re: Eaton HO-52 Help

I have a 4:10 center section for a H052 Ill sell if you need one. They are a simple swap,
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Old 06-20-2011, 09:53 PM   #5
lilred67
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Re: Eaton HO-52 Help

i have junked out 3 HO-52's. i tried to give them away, but no takers..
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Old 06-21-2011, 06:40 AM   #6
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Re: Eaton HO-52 Help

What year is the C10? If it's a '61 or earlier rear it will be a smaller version of the HO52. Is it 6-lug?
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"......

'67 C1500 SWB Wideside Super Custom: 327/M22/3.42 posi...project 'Driver Quality'
(ground-up used truck)
'72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 PowerLoc...project 'Beefy Stock'-ish
(Still original)
'85 K5/25 Jimmy Sierra: 6.2/700r4/4.10 Locker/8-lugs...project 'Jimmy'
(li'l helper,peeps hauler,& fun machine)
Tim

R.I.P. East Side Low Life ____________ R.I.P. El Jay__
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Old 06-21-2011, 03:19 PM   #7
bosco200
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Re: Eaton HO-52 Help

No its a 72 and I think it is a 6 lug.
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1972 C20 250 straight 6...2wd...4 speed Granny low....4.57 rear end
Hopefully throwing a 383 Stroker under the hood.
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Old 06-21-2011, 05:55 PM   #8
bobs409
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Re: Eaton HO-52 Help

I believe they are actually a 4.10 not 4.11 (just to be technically correct)

I've been searching for a 4.10 posi chunk for my 71 C20 forever. Can't find anything around here! My wrecker also has the 4.10 non posi. I'm always blessed with non posi's for some reason.

One of my biggest gripes of old cars is WHY didn't they ALL come with posi rears? Why was there a non posi "peg leg" crap anyway?
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