looking for an eaton third - The 1947 - Present Chevrolet & GMC Truck Message Board Network

shelby987 · 04-29-2006, 09:17 AM

ok, got pulled away from the truck for the last month or so.....but everything seems to be back on track, and I am once again looking for an eaton third with a 4.10 gear set and a locker. If you got one, or know of one, let me know.

Thanks

pumpkin · 04-29-2006, 09:20 AM

Ive got some 5.56 and 5.13, the 4.10 are hard to find. As far as a locker, one out of a 14 bolt will fit, you just have to use the 14 bolt axles. You can buy the detroit lockers new for about $400.

wibilly · 04-29-2006, 10:19 PM

pumpkin, isn't there some machine work also involved in the wheelbearing area of the hubs? i've been thinking about this in order to get a gear ratio in the mid 3's

muddyole 69 · 04-29-2006, 10:24 PM

I have an eaton with I believe 4.10 not sure if locker or not can check middle of next month when i get in for good from second job if that is not too late let me know Mike and man you gotta remind me as the brain is not as sharp as it used to be

later Mike

72 Cheyenne K20 · 04-29-2006, 10:44 PM

Hey Shelby, I've got a friend from the board that has two 4.11 lockers. He's holding one for me and I think he said he was going to post the other on the board. I'm going to call him this week to set up an install date, I'll ask him if he still wants to sell the other one and get back to you.

Scott

wibilly · 04-30-2006, 11:25 PM

if shelby passes on that locker for some reason i would be interested

pumpkin · 05-01-2006, 09:45 AM

Quote:

Originally Posted by wibilly

pumpkin, isn't there some machine work also involved in the wheelbearing area of the hubs? i've been thinking about this in order to get a gear ratio in the mid 3's

I'm not shure of what you mean by your question. The detroit locker for the eaton and 14 bolt are not complete differentials. They are just the parts to replace the spider gears. The differential housing is bolted togeather. I don't know if the ring and pinion, or differential assy are interchangeable between the two. I like the eaton as it is the strongest diff, by design. I solve the brake problem of getting drums, that are unavailable, by converting to discs. I use cadilac rear calipers that have the parking brake built in.

**breeh** · 05-01-2006, 05:44 PM

I have a 4.10 NoSpin (locked rear) Eaton. It is still under a parts truck but if you really want it then I will pull it.

pumpkin · 05-01-2006, 07:12 PM

Quote:

Originally Posted by breeh

I have a 4.10 NoSpin (locked rear) Eaton. It is still under a parts truck but if you really want it then I will pull it.

I' m interested, next in line. how much?

**breeh** · 05-02-2006, 01:23 AM

pumpkin, I will let you know after I talk to shelby.

**breeh** · 05-09-2006, 04:51 PM

Does anyone know how many teeth this ring gear should have on it to be a 4.10? I can't really see the pinion well enough to count and divide.

71/454 · 05-09-2006, 07:08 PM

The ring gear should have some numbers on the edge, i don't remeber the order they're in but i think you just have to divide the big number by the little one

shelby987 · 05-09-2006, 08:33 PM

breeh, your pm box is full

**breeh** · 05-09-2006, 09:16 PM

Sorry, PM box fixed!

**breeh** · 05-10-2006, 03:19 PM

shelby987, look at this other post of yours and there are pictures to help ID a locker. You can see on mine that there is no inner gear. Also, I have confirmed it as a 4.10.

http://67-72chevytrucks.com/vboard/s...ighlight=eaton

wrangler94 · 07-31-2008, 06:31 PM

I know this is resurrecting an old post, but do any of you guys have a 5.13 third for a Eaton? I'd be interested, especially if it's got a locker, but beggars can't be choosers.

pumpkin · 08-01-2008, 10:29 AM

Quote:

Originally Posted by wibilly

pumpkin, isn't there some machine work also involved in the wheelbearing area of the hubs? i've been thinking about this in order to get a gear ratio in the mid 3's

Well I don't know about swapping in the whole diff carrier, but the locker itself comes out of the 14 bolt carrier and goes into the eaton carrier.

rustbucket53 · 06-19-2009, 06:57 PM

I am looking for a 67 to 72 3/4 ton 3rd member with 4:10 gears to swap out my 1953 3600 3rd member. Anyone got one that will work?
RB53

wrangler94 · 06-19-2009, 08:28 PM

Quote:

Originally Posted by rustbucket53

I am looking for a 67 to 72 3/4 ton 3rd member with 4:10 gears to swap out my 1953 3600 3rd member. Anyone got one that will work?
RB53

Mine might be 4.10 but i think it's 4.56 I'd have to check.

rustbucket53 · 06-20-2009, 08:34 AM

Wrangler,
let me know if it is 4:10...if you want to sell it.

I think mine is 4:56...very low gear. I am just trying ot get something so I can keep up with traffic.

How would I tell the gear ratio?

Thanks
Rich

04-29-2006, 09:17 AM	#1
shelby987 Registered User Join Date: Mar 2005 Location: Just outside Durham, NC Posts: 894	looking for an eaton third ok, got pulled away from the truck for the last month or so.....but everything seems to be back on track, and I am once again looking for an eaton third with a 4.10 gear set and a locker. If you got one, or know of one, let me know. Thanks __________________ 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!

04-29-2006, 09:20 AM	#2
pumpkin Registered User Join Date: Apr 2006 Location: East Sooke B.C. Canada Posts: 543	Re: looking for an eaton third Ive got some 5.56 and 5.13, the 4.10 are hard to find. As far as a locker, one out of a 14 bolt will fit, you just have to use the 14 bolt axles. You can buy the detroit lockers new for about $400.

04-29-2006, 10:19 PM	#3
wibilly Senior Member Join Date: Nov 2005 Location: northwestern wi Posts: 2,111	Re: looking for an eaton third pumpkin, isn't there some machine work also involved in the wheelbearing area of the hubs? i've been thinking about this in order to get a gear ratio in the mid 3's __________________ common sense isn't so common anymore

04-29-2006, 10:24 PM	#4
muddyole 69 Senior Member Join Date: Jan 2004 Location: SE Ohio Posts: 1,121	Re: looking for an eaton third I have an eaton with I believe 4.10 not sure if locker or not can check middle of next month when i get in for good from second job if that is not too late let me know Mike and man you gotta remind me as the brain is not as sharp as it used to be later Mike __________________ hav'n fun be'n me

04-29-2006, 10:44 PM	#5
72 Cheyenne K20 Registered User Join Date: Feb 2003 Location: Staunton, Virginia Posts: 554	Re: looking for an eaton third Hey Shelby, I've got a friend from the board that has two 4.11 lockers. He's holding one for me and I think he said he was going to post the other on the board. I'm going to call him this week to set up an install date, I'll ask him if he still wants to sell the other one and get back to you. Scott

04-30-2006, 11:25 PM	#6
wibilly Senior Member Join Date: Nov 2005 Location: northwestern wi Posts: 2,111	Re: looking for an eaton third if shelby passes on that locker for some reason i would be interested __________________ common sense isn't so common anymore

05-01-2006, 05:44 PM	#8
breeh Recovering 67-72 Addict Join Date: Oct 2000 Location: North Bend, WA Posts: 1,788	Re: looking for an eaton third I have a 4.10 NoSpin (locked rear) Eaton. It is still under a parts truck but if you really want it then I will pull it. __________________ 68 Short Fleet 4x4; 427; BTO Level 3 700R4; NP205; Dana 60 front and rear; 4" lift with 35's; Disc brakes; AGR variable ratio steering; factory bucket seats; factory tach and tilt. "Friends call me cruzer cuz I like fast cars and fast women"

05-02-2006, 01:23 AM	#10
breeh Recovering 67-72 Addict Join Date: Oct 2000 Location: North Bend, WA Posts: 1,788	Re: looking for an eaton third pumpkin, I will let you know after I talk to shelby. __________________ 68 Short Fleet 4x4; 427; BTO Level 3 700R4; NP205; Dana 60 front and rear; 4" lift with 35's; Disc brakes; AGR variable ratio steering; factory bucket seats; factory tach and tilt. "Friends call me cruzer cuz I like fast cars and fast women"

05-09-2006, 04:51 PM	#11
breeh Recovering 67-72 Addict Join Date: Oct 2000 Location: North Bend, WA Posts: 1,788	Re: looking for an eaton third Does anyone know how many teeth this ring gear should have on it to be a 4.10? I can't really see the pinion well enough to count and divide. Attached Images __________________ 68 Short Fleet 4x4; 427; BTO Level 3 700R4; NP205; Dana 60 front and rear; 4" lift with 35's; Disc brakes; AGR variable ratio steering; factory bucket seats; factory tach and tilt. "Friends call me cruzer cuz I like fast cars and fast women"

05-09-2006, 07:08 PM	#12
71/454 Turbo Guy Join Date: Jan 2005 Location: Calgary Alberta Posts: 353	Re: looking for an eaton third The ring gear should have some numbers on the edge, i don't remeber the order they're in but i think you just have to divide the big number by the little one

05-09-2006, 08:33 PM	#13
shelby987 Registered User Join Date: Mar 2005 Location: Just outside Durham, NC Posts: 894	Re: looking for an eaton third breeh, your pm box is full __________________ 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!

05-09-2006, 09:16 PM	#14
breeh Recovering 67-72 Addict Join Date: Oct 2000 Location: North Bend, WA Posts: 1,788	Re: looking for an eaton third Sorry, PM box fixed! __________________ 68 Short Fleet 4x4; 427; BTO Level 3 700R4; NP205; Dana 60 front and rear; 4" lift with 35's; Disc brakes; AGR variable ratio steering; factory bucket seats; factory tach and tilt. "Friends call me cruzer cuz I like fast cars and fast women"

05-10-2006, 03:19 PM	#15
breeh Recovering 67-72 Addict Join Date: Oct 2000 Location: North Bend, WA Posts: 1,788	Re: looking for an eaton third shelby987, look at this other post of yours and there are pictures to help ID a locker. You can see on mine that there is no inner gear. Also, I have confirmed it as a 4.10. http://67-72chevytrucks.com/vboard/s...ighlight=eaton __________________ 68 Short Fleet 4x4; 427; BTO Level 3 700R4; NP205; Dana 60 front and rear; 4" lift with 35's; Disc brakes; AGR variable ratio steering; factory bucket seats; factory tach and tilt. "Friends call me cruzer cuz I like fast cars and fast women"

07-31-2008, 06:31 PM	#16
wrangler94 Registered User Join Date: Jul 2008 Location: Washington, NC Posts: 90	Re: looking for an eaton third I know this is resurrecting an old post, but do any of you guys have a 5.13 third for a Eaton? I'd be interested, especially if it's got a locker, but beggars can't be choosers.

06-19-2009, 06:57 PM	#18
rustbucket53 Registered User Join Date: Jun 2009 Location: Wakefield Ma Posts: 10	Re: looking for an eaton third I am looking for a 67 to 72 3/4 ton 3rd member with 4:10 gears to swap out my 1953 3600 3rd member. Anyone got one that will work? RB53



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06-20-2009, 08:34 AM	#20
rustbucket53 Registered User Join Date: Jun 2009 Location: Wakefield Ma Posts: 10	Re: looking for an eaton third Wrangler, let me know if it is 4:10...if you want to sell it. I think mine is 4:56...very low gear. I am just trying ot get something so I can keep up with traffic. How would I tell the gear ratio? Thanks Rich

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