Need help identifying this axle - The 1947 - Present Chevrolet & GMC Truck Message Board Network

usaf_gunner · 10-15-2006, 01:21 AM

I think its a detroit locker but I am not sure, havent came across one like this yet. My options tag says "N-S R Axle" here is what the diff looks like.

Back

Front

Front again

Close up of casting marks

Aarons72s · 10-15-2006, 02:15 AM

Looks like a ho52/72. What is your truck 3/4 or 1 ton. what is your year and make of your truck would also help.
Aaron

*trkklr77* · 10-15-2006, 02:19 AM

probaly a eaton ho52, yes it is a detriot and it very well could have 5.13's to boot.

usaf_gunner · 10-15-2006, 12:56 PM

Its a 69 K20

Aarons72s · 10-15-2006, 09:23 PM

HO 52 axle. To figure out ratio and if it has a locker just unbolt the rear cover, pop the cover off and count the teeth on the ring and pinion and ring divided by pinion teeth = gear ratio. Just look at the carrier to tell if it is a locker or open.
Aaron

long67 · 10-16-2006, 11:41 PM

This looks like mine,its in a 67 3/4 glove box says 4H04HA 4.11 RATIO. Can you still get gears for these.

Aarons72s · 10-16-2006, 11:56 PM

Unitrax had them. You might try them and see if they still have them. If you want a good article on these hunt up October 2001 issue of classic trucks. They rebuild one in a 72 suburban. Here is the web site.
www.gearedbyunitrax.com
Aaron

10-15-2006, 01:21 AM	#1
usaf_gunner Registered User Join Date: Mar 2006 Location: Clinton Utah Posts: 24	Need help identifying this axle I think its a detroit locker but I am not sure, havent came across one like this yet. My options tag says "N-S R Axle" here is what the diff looks like. Back Front Front again Close up of casting marks

10-15-2006, 02:15 AM	#2
Aarons72s Registered User Join Date: Apr 2006 Location: oklahoma Posts: 10,670	Re: Need help identifying this axle Looks like a ho52/72. What is your truck 3/4 or 1 ton. what is your year and make of your truck would also help. Aaron Last edited by Aarons72s; 10-15-2006 at 02:23 AM.

10-15-2006, 02:19 AM	#3
trkklr77 Account Suspended Join Date: Aug 2006 Location: vacaville ca, because it as far from indy as i can be Posts: 777	Re: Need help identifying this axle probaly a eaton ho52, yes it is a detriot and it very well could have 5.13's to boot.

10-15-2006, 12:56 PM	#4
usaf_gunner Registered User Join Date: Mar 2006 Location: Clinton Utah Posts: 24	Re: Need help identifying this axle Its a 69 K20

10-15-2006, 09:23 PM	#5
Aarons72s Registered User Join Date: Apr 2006 Location: oklahoma Posts: 10,670	Re: Need help identifying this axle HO 52 axle. To figure out ratio and if it has a locker just unbolt the rear cover, pop the cover off and count the teeth on the ring and pinion and ring divided by pinion teeth = gear ratio. Just look at the carrier to tell if it is a locker or open. Aaron

10-16-2006, 11:41 PM	#6
long67 Registered User Join Date: Dec 2003 Location: Yakima,WA. Posts: 150	Re: Need help identifying this axle This looks like mine,its in a 67 3/4 glove box says 4H04HA 4.11 RATIO. Can you still get gears for these. __________________ Mark 67 c20 custom camper 55 Olds 2dr hardtop 96 mustang 11 dodge nitro

10-16-2006, 11:56 PM	#7
Aarons72s Registered User Join Date: Apr 2006 Location: oklahoma Posts: 10,670	Re: Need help identifying this axle Unitrax had them. You might try them and see if they still have them. If you want a good article on these hunt up October 2001 issue of classic trucks. They rebuild one in a 72 suburban. Here is the web site. www.gearedbyunitrax.com Aaron



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