Eaton ho52 Rear Axle - The 1947 - Present Chevrolet & GMC Truck Message Board Network

semperfidoordie · 06-09-2008, 06:34 PM

Anyone have any idea what kind of rear end that is? Like is it a limited slip, tru trac or what? I'm new to this whole thing and not as well versed in truck parts as most people here so sorry if it's a dumb question. Also what kind of horsepower could it stand up to? Looking to do a lil build on my truck as i'm sure some of you already know I just don't want to blow out the rear end doing it.

LONGHAIR · 06-09-2008, 07:12 PM

AFAIK, there are only two differentials available for that...."open" and "No-Spin". No-spin is essentially a Detroit locker.
The real issue with them is in gear ratio selection. There aren't many to choose from and they are all pretty low.
It's fairly tough, I don't think that will cause you a problem, if you can get a gear that you can live with.

semperfidoordie · 06-09-2008, 07:20 PM

it has 3.73s right now....that's about decent huh?

LONGHAIR · 06-09-2008, 07:46 PM

Are you sure about that? AFAIK the highest available was 4.10.

semperfidoordie · 06-09-2008, 07:49 PM

Just going by what the seller says in the ad...here's a link http://67-72chevytrucks.com/vboard/c...p?product=2416

kcjones · 06-10-2008, 03:42 PM

I've heard the same thing, HO's came in 4.10 and 4.56 only. I have one in my C20, has 4.10's (but no limited slip).

semperfidoordie · 06-10-2008, 07:41 PM

alrighty..i'll ask him if he knows what the gears are cause here's the ad http://67-72chevytrucks.com/vboard/c...ate=1191828537

leftcoast66 · 06-10-2008, 08:53 PM

What gears will fit it best depends on the tranny. Most of them though 3.73's work well. Except on a wide ratio and such could make it interesting...

kcjones · 06-11-2008, 12:12 PM

If it helps at all, I currently have 30" tall tires, and 4.10's, go about 3100 rpm at 65. My next order of business (this summer I hope) will be 27" inchers on 3.42/posi, which I believe will cut me down to about 2600 rpm @ 65 mph.

semperfidoordie · 06-15-2008, 07:54 PM

that's not bad kcjones. Could someone tell me how I go about exactly identifying which rear end it is? Like since these Eaton HO52s apparently didn't come in 3.73s how do I find out which axle it is?

kcjones · 06-16-2008, 03:24 PM

Here is a little more info...still now sure how to identify, though.

06-09-2008, 06:34 PM	#1
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Eaton ho52 Rear Axle Anyone have any idea what kind of rear end that is? Like is it a limited slip, tru trac or what? I'm new to this whole thing and not as well versed in truck parts as most people here so sorry if it's a dumb question. Also what kind of horsepower could it stand up to? Looking to do a lil build on my truck as i'm sure some of you already know I just don't want to blow out the rear end doing it. __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

06-09-2008, 07:12 PM	#2
LONGHAIR just can't cover up my redneck Join Date: May 2004 Location: Columbus OH Posts: 11,414	Re: Eaton ho52 Rear Axle AFAIK, there are only two differentials available for that...."open" and "No-Spin". No-spin is essentially a Detroit locker. The real issue with them is in gear ratio selection. There aren't many to choose from and they are all pretty low. It's fairly tough, I don't think that will cause you a problem, if you can get a gear that you can live with.

06-09-2008, 07:20 PM	#3
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Eaton ho52 Rear Axle it has 3.73s right now....that's about decent huh? __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

06-09-2008, 07:46 PM	#4
LONGHAIR just can't cover up my redneck Join Date: May 2004 Location: Columbus OH Posts: 11,414	Re: Eaton ho52 Rear Axle Are you sure about that? AFAIK the highest available was 4.10.

06-09-2008, 07:49 PM	#5
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Eaton ho52 Rear Axle Just going by what the seller says in the ad...here's a link http://67-72chevytrucks.com/vboard/c...p?product=2416 __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

06-10-2008, 03:42 PM	#6
kcjones I wish I was a cowboy Join Date: Apr 2008 Location: Rohnert Park, CA Posts: 409	Re: Eaton ho52 Rear Axle I've heard the same thing, HO's came in 4.10 and 4.56 only. I have one in my C20, has 4.10's (but no limited slip). __________________ -Kris Met list: Cyclone,Wilson,TranzAm,extd56,hotrodhomi,mnky30,Rokcrln,Brad,JerryJones(well, his truck anyway).

06-10-2008, 07:41 PM	#7
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Eaton ho52 Rear Axle alrighty..i'll ask him if he knows what the gears are cause here's the ad http://67-72chevytrucks.com/vboard/c...ate=1191828537 __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

06-10-2008, 08:53 PM	#8
leftcoast66 Registered User Join Date: Sep 2006 Location: Covington, WA Posts: 770	Re: Eaton ho52 Rear Axle What gears will fit it best depends on the tranny. Most of them though 3.73's work well. Except on a wide ratio and such could make it interesting...

06-11-2008, 12:12 PM	#9
kcjones I wish I was a cowboy Join Date: Apr 2008 Location: Rohnert Park, CA Posts: 409	Re: Eaton ho52 Rear Axle If it helps at all, I currently have 30" tall tires, and 4.10's, go about 3100 rpm at 65. My next order of business (this summer I hope) will be 27" inchers on 3.42/posi, which I believe will cut me down to about 2600 rpm @ 65 mph. __________________ -Kris Met list: Cyclone,Wilson,TranzAm,extd56,hotrodhomi,mnky30,Rokcrln,Brad,JerryJones(well, his truck anyway).

06-15-2008, 07:54 PM	#10
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Eaton ho52 Rear Axle that's not bad kcjones. Could someone tell me how I go about exactly identifying which rear end it is? Like since these Eaton HO52s apparently didn't come in 3.73s how do I find out which axle it is? __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

06-16-2008, 03:24 PM	#11
kcjones I wish I was a cowboy Join Date: Apr 2008 Location: Rohnert Park, CA Posts: 409	Re: Eaton ho52 Rear Axle Here is a little more info...still now sure how to identify, though. __________________ -Kris Met list: Cyclone,Wilson,TranzAm,extd56,hotrodhomi,mnky30,Rokcrln,Brad,JerryJones(well, his truck anyway).



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.