The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > All 4x4 Tech & Off Roading

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-25-2008, 12:16 PM   #1
shelby987
Registered User
 
shelby987's Avatar
 
Join Date: Mar 2005
Location: Just outside Durham, NC
Posts: 894
Eaton rear.....obsolete Junk!

This is what 4-wheel offroad magazine has chalked the eaton rear upto.....it was classified as a GM 10 bolt....the predecessor to the 14 bolt, I believe they said, "not worth it due to part availablity, and limited gear selection".....is it really a problem that you can only get these in 4.10, 4.56, and 5.13 gears?!?!?!
It is funny, because I remember reading last year in the same magazine that this was a 'junk yard score' because you could get them with lockers, and they came in desirable 'rock-crawler' gear ratios, oh yeah, and they were plentiful.......I believe they recommended them for jeeps because you could swing the third member 180 degrees for an offset rear, and you could also flip the axle housing 180 degrees.....oh yeah, and the added ground clearance....I will have to see if I can find the magazine....now I am pi$$ed!

Ugh......if parts availability, ease of modifications, and swap-ability were all anyone cared about......wouldn't we all be running an SBC, backed by a TH400/205 combo with 1 ton danas under our trucks! (not that there is anything wrong with this combo.....but why does being different have to label your parts as JUNK!)....I like eatons, I like I6's, Big Block V6's, SBC's, BBC's, manuals, automatics, danas, column shifters, bench seats, drum brakes, carbs, fuel injection, manual steering, and rusty old trucks!

Rant off!
__________________
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!
shelby987 is offline   Reply With Quote
Old 01-25-2008, 01:29 PM   #2
ND_guy
Tool Addiction=Money Shortage
 
ND_guy's Avatar
 
Join Date: Mar 2006
Location: Grand Forks, ND
Posts: 233
Re: Eaton rear.....obsolete Junk!

I have been a subscriber for years and I remember their first article about the Eaton. I was thrilled to find out that I had one of those desirable junk yard scores. Now this month I am depressed that I have a "big oversized banjo style...predecessor to the 14-bolt rear end."

Magazines have to fill their pages every month and much of what they write is opinion. Different writers have different views.

My rear end has seen 41 years of service and will see many more, Even if it is "SCRAP TO AVOID AT THE JUNK YARD"
__________________
1967 K20 400TBI SM465/NP205
posi front, Detroit locker 4.56 rear
ND_guy is offline   Reply With Quote
Old 01-25-2008, 04:45 PM   #3
'71c204x4454
'71k204x4454
 
Join Date: Jan 2004
Location: Hood River Or.
Posts: 137
Wink Re: Eaton rear.....obsolete Junk!

It could be a good thing. Maybe people not in the know will start giving them away.
__________________
1971 K20 4x4
1964 buick skylark convertible
'71c204x4454 is offline   Reply With Quote
Old 01-25-2008, 11:00 PM   #4
shelby987
Registered User
 
shelby987's Avatar
 
Join Date: Mar 2005
Location: Just outside Durham, NC
Posts: 894
Re: Eaton rear.....obsolete Junk!

I understand that they have to fill the pages, it just erks me a bit at times when the information is SO different, not to mention a shot at one of my favorite parts of my truck!
I would say the odds are that the article will have zero effect on the price of these axles, either people know what they are and what they have or they don't.....I would assume someone who knows he has a 4.56 locker for sale isn't going to be swayed by the article telling him its junk, and the person who thinks its a 10 bolt, probably doesn't read 4x4 magazines anyway....lol

thanks to all for reading my rant!
__________________
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!
shelby987 is offline   Reply With Quote
Old 01-25-2008, 11:56 PM   #5
pumpkin
Registered User
 
pumpkin's Avatar
 
Join Date: Apr 2006
Location: East Sooke B.C. Canada
Posts: 543
Re: Eaton rear.....obsolete Junk!

I think they are the best rear diff you can get. If someone wants to call them junk, all the better for me. I've picked up 3 of them in the past year for $50 each, basicaly paid the scrap value. One of them had a locker. For building a wheeling truck, I think the 14 bolt sucks ass. I run 35's on my blazer with a shaved eaton. To get the same ground clearance with a 14 bolt I'ld need to run 42's. My latest score was a new in the GM box locker for $200, cause it was oboslete junk.
pumpkin is offline   Reply With Quote
Old 01-26-2008, 12:17 AM   #6
Zoomad75
K5Camper
 
Zoomad75's Avatar
 
Join Date: Mar 2004
Location: Pueblo, CO
Posts: 1,513
Re: Eaton rear.....obsolete Junk!

It's a blessing in desgiuse folks. Let them spew what they want. If that keeps them from hitting the stupid money mark like Dana 60's have reached that fine by me.

Like it or not 67-72 4x4's are a small % of the readership demographics. The 73-87 style holds a little more, but even then pale in comparison to the Heeps of all shapes and sizes in the magazine.

Until somebody starts a different magazine catering to solid axle GM trucks the focus of other mainstream magazines on our favorites will always be less.

If the focus is taken away from the eaton, so be it.
__________________
Rob Z.
1975 K5 350/465/205/D44/12b 4" lift on 35's- RIP
1991 K5 8.1L/NV4500/241/D44/14b FWC Camper
Zoomad75 is offline   Reply With Quote
Old 01-26-2008, 01:08 AM   #7
Yukon Jack
Post Whore
 
Yukon Jack's Avatar
 
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,683
Re: Eaton rear.....obsolete Junk!

I like obsolete!
__________________
1970 Blazer with a 400 sbc and 4" lift
1980 Pontiac Trans Am, 455 Oldsmobile
2012 Kawasaki Concours 14
Yukon Jack is offline   Reply With Quote
Old 01-26-2008, 01:30 AM   #8
earl87gta
Senior Member
 
earl87gta's Avatar
 
Join Date: Dec 2003
Location: Kingsport TN
Posts: 4,641
Re: Eaton rear.....obsolete Junk!

They do that stuff to keep the vendors happy if you can score an eaton with a locker and 4:56 gears why would you spend money to add 4:56 gears and a loker to something else. Just my take on it. I think eaton is the best rear out there. and with being able to do the eaton 14 hybrid we sould be able to get parts for a long time.
__________________
Earl
68 2500 4x4 GMC Burb
earl87gta is offline   Reply With Quote
Old 01-26-2008, 07:20 AM   #9
Blazer1970
Registered User
 
Blazer1970's Avatar
 
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,510
Re: Eaton rear.....obsolete Junk!

I wish they would print something like that about the 14 bolt. It might keep a few good GM trucks from getting parted out for the axles.
__________________
Tim

Last edited by Blazer1970; 01-26-2008 at 07:20 AM.
Blazer1970 is offline   Reply With Quote
Old 01-26-2008, 07:31 AM   #10
shilo
Registered User
 
shilo's Avatar
 
Join Date: Jun 2005
Location: Grand Junction , CO
Posts: 602
Re: Eaton rear.....obsolete Junk!

whats the weight comparison of a eaton vs a 14 bolt?
__________________
71 swb 4x4, 37" Iroks, t400/205 496
77 CJ-7, Narrowed Dana 60 Lockrite, 14 Bolt Spool, 4.56 gears, 39.5" boggers. 360 t-18/d20
shilo is offline   Reply With Quote
Old 01-26-2008, 09:14 AM   #11
1969 GMC
Registered User
 
1969 GMC's Avatar
 
Join Date: Feb 2003
Location: The Rubber City
Posts: 5,498
Re: Eaton rear.....obsolete Junk!

Quote:
Originally Posted by shilo View Post
whats the weight comparison of a eaton vs a 14 bolt?
It's lighter...don't have any #'s for ya though.

The pages of 4WOR have historically been filled with a myriad of inaccuracies, fact fudgings, and blatant mistruths, which is why I let my subscription expire. The first time I remember reading about the Eaton, they said it had a 12.25" ring gear (ha), and I was disappointed to learn mine was only slightly over 10", lol.

I still wonder what "parts" they mean when you talk about parts hard to find? Maybe brakes. Other than that, what is it? Carrier halves? Spider gears?
__________________
1969 GMC K2500
1996 Honda Accord
2007 Kawasaki KLR 650
1969 GMC is offline   Reply With Quote
Old 01-26-2008, 10:37 AM   #12
shilo
Registered User
 
shilo's Avatar
 
Join Date: Jun 2005
Location: Grand Junction , CO
Posts: 602
Re: Eaton rear.....obsolete Junk!

O that mag is full of inaccuracys. Spline counts, ring gear size, all kinds of stuff. Examples like they say this truck has a dana 70 rear but anyone can see the pic knows its a 14 bolt or vice versa.
__________________
71 swb 4x4, 37" Iroks, t400/205 496
77 CJ-7, Narrowed Dana 60 Lockrite, 14 Bolt Spool, 4.56 gears, 39.5" boggers. 360 t-18/d20
shilo is offline   Reply With Quote
Old 01-26-2008, 10:51 AM   #13
Garage Freak
Registered User
 
Join Date: Oct 2007
Location: Roswell, GA
Posts: 43
Re: Eaton rear.....obsolete Junk!

I'm fairly new to the Eaton rears. I have one in my Longhorn and picked up an additional center section to rebuild and swap out.

Is there any other gearing available for highway driving over 4.10?

Thanks!
Garage Freak is offline   Reply With Quote
Old 01-26-2008, 01:24 PM   #14
wibilly
Senior Member
 
wibilly's Avatar
 
Join Date: Nov 2005
Location: northwestern wi
Posts: 2,111
Re: Eaton rear.....obsolete Junk!

yup, taller tires
__________________
common sense isn't so common anymore
wibilly is offline   Reply With Quote
Old 01-26-2008, 09:20 PM   #15
shelby987
Registered User
 
shelby987's Avatar
 
Join Date: Mar 2005
Location: Just outside Durham, NC
Posts: 894
Re: Eaton rear.....obsolete Junk!

When I was looking for taller gears for my eaton, there was a rumor that there was a company that used to make 3.90 gears for it......but I was never able to find a set. I opted to go to 4.10 and upgrade my worn out 30's for 33's.
__________________
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!
shelby987 is offline   Reply With Quote
Old 01-27-2008, 12:33 AM   #16
Dean
Senior Member
 
Dean's Avatar
 
Join Date: Jan 2000
Location: Cincinnati, Ohio
Posts: 1,492
Re: Eaton rear.....obsolete Junk!

I'm glad I've got a bunch of those "obsolete" rearends.
Dean is offline   Reply With Quote
Old 01-27-2008, 03:13 AM   #17
Eichorst69
Registered User
 
Join Date: Jan 2007
Location: South Florida
Posts: 158
Re: Eaton rear.....obsolete Junk!

I have the eaton with 4.56's and the Detroit Locker w/ 17/40 Ground Hawgs and prefer it over any other rear end. I have saved many spare axles and center sections for when I break this one but I don't think I could break it if I tried.

I rebuilt one for a friend who wanted to change the ring and pinion from 4.10 to 5.13 gears for a hunting buggy with six foot tall tractor tires.
I hand no problem finding all the bearings, the friend supplied the NEW ring & pinion.

And, just about an hour ago, another friend called and told me he had a whole eaton rear w/ 4.56's that I could have. I want to eventually build a 67 c-10 and I want to squeez an eaton under it. I'll swap the 4.56's with a 4.10 center section I have.

Rob
Eichorst69 is offline   Reply With Quote
Old 01-27-2008, 06:16 AM   #18
earl87gta
Senior Member
 
earl87gta's Avatar
 
Join Date: Dec 2003
Location: Kingsport TN
Posts: 4,641
Re: Eaton rear.....obsolete Junk!

Quote:
Originally Posted by Dean View Post
I'm glad I've got a bunch of those "obsolete" rearends.
Me 2. I think there the best rear you can use.
__________________
Earl
68 2500 4x4 GMC Burb
earl87gta is offline   Reply With Quote
Old 01-27-2008, 08:25 AM   #19
shelby987
Registered User
 
shelby987's Avatar
 
Join Date: Mar 2005
Location: Just outside Durham, NC
Posts: 894
Re: Eaton rear.....obsolete Junk!

It definately makes me happy to see other people standing up for this axle, I love mine, I plan on keeping it as long as possible.....and being as they are 'obselete junk' hopefully that will keep any required repair parts easily accessible to those willing to look, and most importantly CHEAP!

I would like to see a pic. of this eaton axle with the 6' tractor tires!
__________________
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!
shelby987 is offline   Reply With Quote
Old 01-27-2008, 10:30 AM   #20
kris's66lwb
resident wrencher
 
Join Date: Dec 2006
Location: ramona california
Posts: 720
Re: Eaton rear.....obsolete Junk!

i love my eaton i just whis i didnt have such low gears i think i have 513s and i want 410s
kris's66lwb is offline   Reply With Quote
Old 01-27-2008, 11:57 AM   #21
Eichorst69
Registered User
 
Join Date: Jan 2007
Location: South Florida
Posts: 158
Re: Eaton rear.....obsolete Junk!

I would like to see a pic. of this eaton axle with the 6' tractor tires![/QUOTE]

I'll get a pic. and post it soon.

Rob
Eichorst69 is offline   Reply With Quote
Old 01-27-2008, 12:37 PM   #22
70rs/ss
Registered User
 
70rs/ss's Avatar
 
Join Date: Dec 2004
Location: Northern AZ
Posts: 7,271
Re: Eaton rear.....obsolete Junk!

Aren't brake parts hard to come by? I tossed one with a truck I scrapped thinking I didn't need it?!
70rs/ss is offline   Reply With Quote
Old 01-27-2008, 02:32 PM   #23
earl87gta
Senior Member
 
earl87gta's Avatar
 
Join Date: Dec 2003
Location: Kingsport TN
Posts: 4,641
Re: Eaton rear.....obsolete Junk!

They say drums are hard to get for them but you can always ad disks any way that’s what I did. They use the same disk break kit as the 14blts do. You can also use 14blt hubs and breaks with some machine work.
__________________
Earl
68 2500 4x4 GMC Burb

Last edited by earl87gta; 01-27-2008 at 02:33 PM.
earl87gta is offline   Reply With Quote
Old 01-29-2008, 04:56 AM   #24
ryanroo
Senior Member
 
ryanroo's Avatar
 
Join Date: Apr 2004
Location: sw colorado
Posts: 2,720
Re: Eaton rear.....obsolete Junk!

thats the same magazine that once responded to a reader write in saying that swapping a cummins 6bt into a wrangler tj would be a perfectly good waste of a great jeep and a great engine. then five years later built one for their annual build up...
__________________
72 K20 12v build
72 K20 "parts truck"

ryanroo is offline   Reply With Quote
Old 01-29-2008, 06:14 AM   #25
1tonswb
Account Suspended
 
1tonswb's Avatar
 
Join Date: Nov 2003
Location: Oregon
Posts: 300
Re: Eaton rear.....obsolete Junk!

I would never own a eaton. After how many that Ive seen break and people trying to find gears and lockers for them it seems pointless. There are plenty other axles out there that are just as strong if not stronger that you can easily get parts for. If you already have a eaton and it works great then there is no need for to swap it out. But, if your building a wheeler from the ground up then why pick something that parts arent easily available for? I run 14 bolts and always have, but if I start breaking alot of parts I wont be swapping in a eaton. It would be time for a dana 80.
1tonswb is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:08 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com