Can anyone ID this rearend?! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Boydness · 10-17-2005, 06:59 PM

Recently bought the 72 Chevy and it came with this rearend. I have had the hardest time locating parts for it. Found 13" brakes for it, but can not locate the retaining rings for the hubs.

Any ideas?

It has 8 bolts in the cover with two on each side close to each other in line with the axle.

(Not the cleanest it could be, but it took me forever to remove enough mud to at least show the features.)

Boyd

*FormerMember* · 10-17-2005, 07:03 PM

Eaton. Good solid axle.

HO model, can't quite grab the model #'s

'71c204x4454 · 10-17-2005, 07:08 PM

Here is a good thread on this subject. Almost more then you want to know.
http://www.67-72chevytrucks.com/vboa...d.php?t=172827

Boydness · 10-17-2005, 07:11 PM

Quote:

Originally Posted by grendel

Eaton. Good solid axle.

HO model, can't quite grab the model #'s

Thought it was an Eaton, but no one could tell me anything about it...

The numbers on the short side are: 3766686 (?) 28 "Wheel" D

Does that sound right?

Boydness · 10-17-2005, 07:22 PM

Also forgot to mention that it is a dually, if that makes a difference...

I am guessing that it is a 1-ton Dually Eaton H072 That sound right?

*FormerMember* · 10-17-2005, 07:59 PM

HO74 (I think... might be HO72 as I get them confused with the HO52) then.

all dually I've seen with an Eaton have been HO7x.

<-- is Captain Lysdexic

Boydness · 10-17-2005, 08:11 PM

Quote:

Originally Posted by grendel

HO74 (I think... might be HO72 as I get them confused with the HO52) then.

all dually I've seen with an Eaton have been HO7x.

<-- is Captain Lysdexic

I will call around tomorrow, now that I have an idea of what I am actually looking for...

dwaite72lnghrn · 10-17-2005, 08:36 PM

It's not an H072/h11 as it does not have the ring stabilizer bolt on it.

*FormerMember* · 10-17-2005, 08:43 PM

Quote:

Originally Posted by dwaite72lnghrn

It's not an H072/h11 as it does not have the ring stabilizer bolt on it.

Do you think someone swapped it in and converted it to a dually?

I thought all duallys were HO72?

Longhorn Man · 10-17-2005, 08:48 PM

That is not an HO72...it has coil springs. This is a C/20 isn't it? That would make it an HO52.
NO one tons came with coils, and the one ton is the only way to get an HO72.

Grendel, forgive me, I am having problems remembering your truck... is it the maroon GMC duallie witht he fleet bed and step side fenders attached? If so...yes...DEFINATLY an owner modified rig. No daulies came with beds... none in 3/4 ton trucks, and another point of interest... the extra tires were inboard of the hubsm not poutboard. The track width was i9ncreased by an inch or two instead of by a foot or so on the later rear ends found under daulies.

Boydness · 10-18-2005, 06:27 AM

Quote:

Originally Posted by Longhorn Man

That is not an HO72...it has coil springs. This is a C/20 isn't it? That would make it an HO52.
NO one tons came with coils, and the one ton is the only way to get an HO72

Not sure why the coil springs were added, but they are not OEM or anything.

4x4Poet · 10-18-2005, 02:38 AM

Quote:

Originally Posted by Boydness

Recently bought the 72 Chevy and it came with this rearend. I have had the hardest time locating parts for it. Found 13" brakes for it, but can not locate the retaining rings for the hubs....

Do you mean the two hub washers that have a tab on the inside circle and slide onto the spindle to either insulate the bearing from the lockwasher or the locknut from the lock washer? If so, the dealer still sells them. For my '72 SRW H052, I recently picked up a hub washer at my local dealer:

3663658 Washer $5.25 each.

I can't say for sure that they will fit your dually setup Eaton. Take an old one with you. Have a good look at your lock washers, too, since the dealer likely carries them, as well. I couldn't find either at local auto parts stores.

Boydness · 10-18-2005, 05:14 PM

Quote:

Originally Posted by 4x4Poet

3663658 Washer $5.25 each.

Turns out what I was looking for was:
3663659 LOCK $5.66

I went ahead add replaced the 3663658 WASHER $5.64 also.

I tracked them down at R.K. Chevrolet after calling around a bit.
It was a lot easier actually knowing what you are looking for and to be able to give someone a part number. Thanks alot 4x4Poet

Fortunately Grendal confirmed that it was an Eaton, so that I could at least stop looking up every other type.

Why does everyone else got to hate?! (cough cough Longhorn Man & MasterBeavis)

It's a POS, but at least it's my POS.
LOL, just kidding, it's a truck that I bought to haul my little projects. It has come to be another one of my projects. My buddy that helps me (read: does most of the work) doesn't care too much for it right now.

I will take some pics of it, but it is nothing to look at right now...

Boyd

masterbeavis · 10-18-2005, 02:46 AM

I read that some of the HO axles did not have the ring gear bolt chingadera. Check out the bootie fab welding job mounting the springs to the housing. Looks safe, Id run it!!

[edit]

Looking at the entire axle helps some.

**special-K** · 10-18-2005, 06:53 AM

I was going to mention the non-original nature of those coils.They are added as auxilary to the leafs?It sounds like your question is answered.But,can we get more pictures of theaxle set-up and truck?

Longhorn Man · 10-18-2005, 04:36 PM

Yowzers.... how did I NOT notice the total LACK of trailing arms???

*FormerMember* · 10-18-2005, 04:53 PM

BTW, this is NOT my truck.

I wish I had the dually with the bed...

Mine is a dropped C10 these days, but I've had a few 67-72's in my life.

Boydness · 10-18-2005, 06:35 PM

http://67-72chevytrucks.com/vboard/s...d.php?t=177268

Boydness · 10-19-2005, 04:13 PM

I was just kidding about the

stuff all.

Feel free to make fun of or comment about whatever you think is wrong or funny about my truck/stuff. I don't take any of it serious. But, be sure to tell me how to fix/replace/destroy whatever it is also...

Boyd

10-17-2005, 06:59 PM	#1
Boydness Projects follow me home... Join Date: Aug 2005 Location: St Marys, OH Posts: 88	Can anyone ID this rearend?! Recently bought the 72 Chevy and it came with this rearend. I have had the hardest time locating parts for it. Found 13" brakes for it, but can not locate the retaining rings for the hubs. Any ideas? It has 8 bolts in the cover with two on each side close to each other in line with the axle. (Not the cleanest it could be, but it took me forever to remove enough mud to at least show the features.) Boyd Attached Images

10-17-2005, 07:03 PM	#2
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Re: Can anyone ID this rearend?! Eaton. Good solid axle. HO model, can't quite grab the model #'s

10-17-2005, 07:08 PM	#3
'71c204x4454 '71k204x4454 Join Date: Jan 2004 Location: Hood River Or. Posts: 137	Re: Can anyone ID this rearend?! Here is a good thread on this subject. Almost more then you want to know. http://www.67-72chevytrucks.com/vboa...d.php?t=172827 __________________ 1971 K20 4x4 1964 buick skylark convertible Last edited by '71c204x4454; 10-17-2005 at 07:09 PM.

10-17-2005, 07:22 PM	#5
Boydness Projects follow me home... Join Date: Aug 2005 Location: St Marys, OH Posts: 88	Re: Can anyone ID this rearend?! Also forgot to mention that it is a dually, if that makes a difference... I am guessing that it is a 1-ton Dually Eaton H072 That sound right? Last edited by Boydness; 10-17-2005 at 08:01 PM.

10-17-2005, 07:59 PM	#6
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Re: Can anyone ID this rearend?! HO74 (I think... might be HO72 as I get them confused with the HO52) then. all dually I've seen with an Eaton have been HO7x. <-- is Captain Lysdexic Last edited by FormerMember; 10-17-2005 at 08:03 PM.

10-17-2005, 08:36 PM	#8
dwaite72lnghrn Registered User Join Date: Jun 2002 Location: central pa Posts: 1,525	Re: Can anyone ID this rearend?! It's not an H072/h11 as it does not have the ring stabilizer bolt on it. __________________ 72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne

10-17-2005, 08:48 PM	#10
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Can anyone ID this rearend?! That is not an HO72...it has coil springs. This is a C/20 isn't it? That would make it an HO52. NO one tons came with coils, and the one ton is the only way to get an HO72. Grendel, forgive me, I am having problems remembering your truck... is it the maroon GMC duallie witht he fleet bed and step side fenders attached? If so...yes...DEFINATLY an owner modified rig. No daulies came with beds... none in 3/4 ton trucks, and another point of interest... the extra tires were inboard of the hubsm not poutboard. The track width was i9ncreased by an inch or two instead of by a foot or so on the later rear ends found under daulies.

10-18-2005, 02:46 AM	#14
masterbeavis Having issues Join Date: Jul 2005 Location: Eldorado Ca, an hour east of sacramento Posts: 696	Re: Can anyone ID this rearend?! I read that some of the HO axles did not have the ring gear bolt chingadera. Check out the bootie fab welding job mounting the springs to the housing. Looks safe, Id run it!! [edit] Looking at the entire axle helps some. __________________ Quando Omni Flunkus Moritati. The Man's Prayer: "I'm a man, but I can change, if I have to, I guess." Last edited by masterbeavis; 10-23-2005 at 09:49 PM.

10-18-2005, 06:53 AM	#15
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Re: Can anyone ID this rearend?! I was going to mention the non-original nature of those coils.They are added as auxilary to the leafs?It sounds like your question is answered.But,can we get more pictures of theaxle set-up and truck? __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

10-18-2005, 04:36 PM	#16
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Can anyone ID this rearend?! Yowzers.... how did I NOT notice the total LACK of trailing arms???

10-18-2005, 04:53 PM	#17
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Re: Can anyone ID this rearend?! BTW, this is NOT my truck. I wish I had the dually with the bed... Mine is a dropped C10 these days, but I've had a few 67-72's in my life.

10-18-2005, 06:35 PM	#18
Boydness Projects follow me home... Join Date: Aug 2005 Location: St Marys, OH Posts: 88	Re: Can anyone ID this rearend?! http://67-72chevytrucks.com/vboard/s...d.php?t=177268

10-19-2005, 04:13 PM	#19
Boydness Projects follow me home... Join Date: Aug 2005 Location: St Marys, OH Posts: 88	Re: Can anyone ID this rearend?! I was just kidding about the stuff all. Feel free to make fun of or comment about whatever you think is wrong or funny about my truck/stuff. I don't take any of it serious. But, be sure to tell me how to fix/replace/destroy whatever it is also... Boyd



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