eaton years? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

shelby987 · 02-23-2006, 11:29 AM

Just out of curiousity....what years were the eaton rear axles put into trucks....was it just 67-70?
It was only C/K20-30's right?

72MARIO · 02-23-2006, 11:37 AM

I have a 71 with a locker in it. C20

I am sure you will not find one in a 73 from the factory.

ckhd · 02-23-2006, 12:16 PM

I think it was 47-72. I'm not sure about the 47, but 72 was the last year.

Longhorn Man · 02-23-2006, 02:35 PM

47 sounds about right, 72 was the last year. 20 series and 30 series, in c and k trucks.

70rs/ss · 02-23-2006, 02:43 PM

Are these worth anything? I have one in a 68 3/4 ton that i figured was not worth anything. It is a complete rust free truck, just no motor trans. I actually thought I'd cut it up into a trailer?! If the rear is useful I'll pull it and sell?! Just curious, not trying to steal thread or sell here!

Longhorn Man · 02-23-2006, 03:06 PM

There ar eplenty of people interested in the center section if it is a 4.10, but no one wants to pay to ship 150 pounds.

Frizzle Fry · 02-23-2006, 03:19 PM

I have a 60-66 fleetside trailer with an eaton under it. I'm told that some are worth $500 with the right hardware.

Longhorn Man · 02-23-2006, 03:30 PM

highly doubtfull in all reality.
If you offered me 500 bucks for the eaton in my truck, I'd break out the jack stands and rip it out for you.

70rs/ss · 02-23-2006, 03:36 PM

I figured, anything is worth what someone will pay! I have no idea on the ratio. I was shocked when I saw it because it reminded me of a 9" or something with that smooth rear on it. I'll have to study up on it for a ratio and I am not sure if it is a posi?

shelby987 · 02-23-2006, 03:36 PM

They only seem to be worth anything if they have the locker installed in them....not sure what years the locker started being an option.

1967k30 · 02-23-2006, 04:16 PM

They ran from 47'-72'. The H072 has a Load Bolt and larger brakes. The H052 is just the standard rear end. The No-Spin appears to have became avaliable in the 60's but I have no proof, yet.I'm always finding out new info about them.

bobski · 02-23-2006, 04:53 PM

just a couple of things to add, the ratios that i've found in research 4:10, 4:56, 5:13 the no-spin is REALLY hard to run across if your looking, and the shafts + spider/side gears can be swapped out for a 14-bolt detroit + shafts if your looking to add a locker. also, if you want to add disc brakes, there are a few companies selling kits specific to the eaton, but 14-bolt kits can be modified to work (the spacers will need to be shortened) i used one from BTF(www.bluetorchfab.com)

hope this helps out

Longhorn Man · 02-23-2006, 05:05 PM

That deflection or load bolt was not only on the 72's... I have one out of a 72 HO52 with said bolt.

davidh · 02-23-2006, 06:17 PM

Hmm I cut up a 67 3/4 frame and made a truck be trailer too. I doubt they're worth much.

1969 GMC · 02-23-2006, 07:47 PM

It's always worth a check to see if they have a No-Spin or not. I got my H052 from a '65 C20 with coil springs and trailing arms, and it had 4.57 gears and the No-Spin from the factory.

72MARIO · 02-23-2006, 08:36 PM

My part trucks had 4:11 and no spin. I am saving it for somthing. They are worth alot to the right people looking for them. Espically the 47-54ish guys that want posi and stock rears.

incoma · 02-23-2006, 11:09 PM

are we talking axles or carriers? Eaton makes carriers for all years..

Rod · 02-24-2006, 12:27 AM

There talking the gm axle known as an eaton in the service and parts manuals.

These trucks typical (3/4 and 1 ton) used a dana 60 or an Eaton axle for rear diffs.

1967k30 · 02-24-2006, 01:16 AM

Quote:

Originally Posted by Longhorn Man

That deflection or load bolt was not only on the 72's... I have one out of a 72 HO52 with said bolt.

Are you sure it's a 52? In my research I came to the conclusion that and the bigger brakes are what make a 72.

Just what I gathered.

72 Cheyenne K20 · 02-24-2006, 03:17 AM

Interested in this load bolt. Does anyone have a pic of it and where it is on the rear end. I believe I have the larger brakes because I have the bigger of the 2 brake drums. Is there a stamp or number to identify the rear ends.

Chris H · 02-24-2006, 08:48 AM

I added 2 pictures here.
First one has the load bolt circled. Calling it a load bolt is a bit misleading, as it is more of an adjustable clearance bolt. I dont have a service manual with me, but basically you loosen the locking nut, adjust to zero clearance, back off a certain amount, then torque the locking nut. It sets a fractional clearance to the ring gear and stops it from deflecting under heavy load.

Second picture has what is visible of a factory No-Spin, or detroit locker. If you look in this window and see gears, its not a locker.

bobski · 02-24-2006, 10:19 AM

thanks for the pics, if anyone has a 5:13 geared thrid member semi-close to NC, i'd be VERY interested in taking it off your hands.

here's a pic of mine, shaved and plated:

1967k30 · 02-24-2006, 10:39 AM

I have access to a bunch of them.I believe there are still a couple 5.13's.I have sold all of the ones I've picked up.I'm getting ready to install a 5.13 factory Detroit in my rig and my brother has one for his rig as well.

bobski · 02-24-2006, 05:16 PM

Quote:

Originally Posted by 1967k30

I have access to a bunch of them.I believe there are still a couple 5.13's.I have sold all of the ones I've picked up.I'm getting ready to install a 5.13 factory Detroit in my rig and my brother has one for his rig as well.

let me know if you run across an extra.

thanks
brandon

02-23-2006, 11:29 AM	#1
shelby987 Registered User Join Date: Mar 2005 Location: Just outside Durham, NC Posts: 894	eaton years? Just out of curiousity....what years were the eaton rear axles put into trucks....was it just 67-70? It was only C/K20-30's right? __________________ 1969 SS 350 Camaro Sold 2008 1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's 1980 Chevy Malibu 2 dr Sold 2007 1993 Olds. Cutlass Ciera Wagon Traded 2006 2003 Saturn L200 w/5pd. D/D My list spans 5 decades with One common thread.....GM!

02-23-2006, 11:37 AM	#2
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	Re: eaton years? I have a 71 with a locker in it. C20 I am sure you will not find one in a 73 from the factory. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

02-23-2006, 12:16 PM	#3
ckhd Registered User Join Date: Oct 2000 Location: St. Johns, Arizona Posts: 2,660	Re: eaton years? I think it was 47-72. I'm not sure about the 47, but 72 was the last year. __________________ my 2¢ - t.i.o.l.i. Bowen 1968 K20 fleet 1969 K10 swb fleet 1972 K10 Suburban 1972 C10 lwb step 1992 K1500 'burb 1995 K2500 'burb 1997 C1500 'burb 1999 K1500 2000 K1500 'burb Why do I own so many Suburbans?

02-23-2006, 02:35 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: eaton years? 47 sounds about right, 72 was the last year. 20 series and 30 series, in c and k trucks.

02-23-2006, 02:43 PM	#5
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,271	Re: eaton years? Are these worth anything? I have one in a 68 3/4 ton that i figured was not worth anything. It is a complete rust free truck, just no motor trans. I actually thought I'd cut it up into a trailer?! If the rear is useful I'll pull it and sell?! Just curious, not trying to steal thread or sell here!

02-23-2006, 03:06 PM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: eaton years? There ar eplenty of people interested in the center section if it is a 4.10, but no one wants to pay to ship 150 pounds.

02-23-2006, 03:19 PM	#7
Frizzle Fry Registered User Join Date: Aug 2005 Location: Hillsboro Oregon Posts: 6,449	Re: eaton years? I have a 60-66 fleetside trailer with an eaton under it. I'm told that some are worth $500 with the right hardware.

02-23-2006, 03:30 PM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: eaton years? highly doubtfull in all reality. If you offered me 500 bucks for the eaton in my truck, I'd break out the jack stands and rip it out for you.

02-23-2006, 03:36 PM	#9
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,271	Re: eaton years? I figured, anything is worth what someone will pay! I have no idea on the ratio. I was shocked when I saw it because it reminded me of a 9" or something with that smooth rear on it. I'll have to study up on it for a ratio and I am not sure if it is a posi?

02-23-2006, 03:36 PM	#10
shelby987 Registered User Join Date: Mar 2005 Location: Just outside Durham, NC Posts: 894	Re: eaton years? They only seem to be worth anything if they have the locker installed in them....not sure what years the locker started being an option. __________________ 1969 SS 350 Camaro Sold 2008 1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's 1980 Chevy Malibu 2 dr Sold 2007 1993 Olds. Cutlass Ciera Wagon Traded 2006 2003 Saturn L200 w/5pd. D/D My list spans 5 decades with One common thread.....GM!

02-23-2006, 04:16 PM	#11
1967k30 Senior Member Join Date: Sep 2005 Location: NE Posts: 363	Re: eaton years? They ran from 47'-72'. The H072 has a Load Bolt and larger brakes. The H052 is just the standard rear end. The No-Spin appears to have became avaliable in the 60's but I have no proof, yet.I'm always finding out new info about them. __________________ 01 2500 Duramax,6spd,4x4,Not stock. Estimated 550rwhp/1100rwfp on fuel only. 03 3500 Duramax,6spd,4x4,Pac-Brake,not stock Estimated 500rwhp/1000rwfp fuel only 67 K10 in many pieces Little Brothers truck 67 K20 Cummins 12V/NV4500/205, D60/Eaton w/ Detroit,37" Xterrains,crossover steering, Future plans,Twins and lots of fuel.

02-23-2006, 04:53 PM	#12
bobski Registered User Join Date: Sep 2005 Location: wilson, nc Posts: 41	Re: eaton years? just a couple of things to add, the ratios that i've found in research 4:10, 4:56, 5:13 the no-spin is REALLY hard to run across if your looking, and the shafts + spider/side gears can be swapped out for a 14-bolt detroit + shafts if your looking to add a locker. also, if you want to add disc brakes, there are a few companies selling kits specific to the eaton, but 14-bolt kits can be modified to work (the spacers will need to be shortened) i used one from BTF(www.bluetorchfab.com) hope this helps out

02-23-2006, 05:05 PM	#13
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: eaton years? That deflection or load bolt was not only on the 72's... I have one out of a 72 HO52 with said bolt.

02-23-2006, 06:17 PM	#14
davidh Senior Member Join Date: Feb 2004 Location: Ponca city now kingfisher Oklahoma Posts: 1,221	Re: eaton years? Hmm I cut up a 67 3/4 frame and made a truck be trailer too. I doubt they're worth much.

02-23-2006, 07:47 PM	#15
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	Re: eaton years? It's always worth a check to see if they have a No-Spin or not. I got my H052 from a '65 C20 with coil springs and trailing arms, and it had 4.57 gears and the No-Spin from the factory. __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650



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02-23-2006, 08:36 PM	#16
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	Re: eaton years? My part trucks had 4:11 and no spin. I am saving it for somthing. They are worth alot to the right people looking for them. Espically the 47-54ish guys that want posi and stock rears. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

02-23-2006, 11:09 PM	#17
incoma Registered User Join Date: Mar 2004 Location: Lexington, KY Posts: 865	Re: eaton years? are we talking axles or carriers? Eaton makes carriers for all years..

02-24-2006, 12:27 AM	#18
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Re: eaton years? There talking the gm axle known as an eaton in the service and parts manuals. These trucks typical (3/4 and 1 ton) used a dana 60 or an Eaton axle for rear diffs. __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

02-24-2006, 03:17 AM	#20
72 Cheyenne K20 Registered User Join Date: Feb 2003 Location: Staunton, Virginia Posts: 554	Re: eaton years? Interested in this load bolt. Does anyone have a pic of it and where it is on the rear end. I believe I have the larger brakes because I have the bigger of the 2 brake drums. Is there a stamp or number to identify the rear ends.

02-24-2006, 08:48 AM	#21
Chris H 72 C30 Trailer Queen Join Date: Dec 1999 Location: SE MN, USA Posts: 794	Re: eaton years? I added 2 pictures here. First one has the load bolt circled. Calling it a load bolt is a bit misleading, as it is more of an adjustable clearance bolt. I dont have a service manual with me, but basically you loosen the locking nut, adjust to zero clearance, back off a certain amount, then torque the locking nut. It sets a fractional clearance to the ring gear and stops it from deflecting under heavy load. Second picture has what is visible of a factory No-Spin, or detroit locker. If you look in this window and see gears, its not a locker. Attached Images __________________ Chris H 72 C30 133" 72 C30 157" flat-dump 69 C10 short fleet 71 ElCamino 2000 K2500 crewcab shortbed (sold, sorry old friend) 2005 GMC 2500HD shortcrew Duramax 2006 K1500 RCSB and a couple other projects/parts

02-24-2006, 10:19 AM	#22
bobski Registered User Join Date: Sep 2005 Location: wilson, nc Posts: 41	Re: eaton years? thanks for the pics, if anyone has a 5:13 geared thrid member semi-close to NC, i'd be VERY interested in taking it off your hands. here's a pic of mine, shaved and plated:

02-24-2006, 10:39 AM	#23
1967k30 Senior Member Join Date: Sep 2005 Location: NE Posts: 363	Re: eaton years? I have access to a bunch of them.I believe there are still a couple 5.13's.I have sold all of the ones I've picked up.I'm getting ready to install a 5.13 factory Detroit in my rig and my brother has one for his rig as well. __________________ 01 2500 Duramax,6spd,4x4,Not stock. Estimated 550rwhp/1100rwfp on fuel only. 03 3500 Duramax,6spd,4x4,Pac-Brake,not stock Estimated 500rwhp/1000rwfp fuel only 67 K10 in many pieces Little Brothers truck 67 K20 Cummins 12V/NV4500/205, D60/Eaton w/ Detroit,37" Xterrains,crossover steering, Future plans,Twins and lots of fuel.

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