Just another rear axle ID thread! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67chevy_hotrod · 01-10-2017, 11:16 PM

Ok I pulled the rearend outta my 67 and I'd like to know what it is, but I couldn't match any codes or ID numbers.. it appears to have signs of spring perches at one point. However it looks like it was a decent job(good welds and grinded smooth) regardless I would like to know some about it.. here's some pics
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67chevy_hotrod · 01-10-2017, 11:17 PM

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**LockDoc** · 01-11-2017, 02:11 AM

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According to the charts it looks to be a 3.73..... The HA is what you use.

http://67-72chevytrucks.com/vboard/s...d.php?t=578793

Don't mind the c14 designation.

LockDoc

67chevy_hotrod · 01-12-2017, 01:08 AM

Right on. Thanks doc, I had dug up that thread but that C14 threw me off. Any way to know what it originally came from? Or if it's posi? I can't recall the wheel spin trick to determine posi, lsd, all that jazz. Thanks again

**LockDoc** · 01-12-2017, 01:49 AM

Quote:

Originally Posted by 67chevy_hotrod

Right on. Thanks doc, I had dug up that thread but that C14 threw me off. Any way to know what it originally came from? Or if it's posi? I can't recall the wheel spin trick to determine posi, lsd, all that jazz. Thanks again

Not a Posi. Letters would be "HC" or "JQ" for a Posi in '67. Jack it up so both wheels are off the ground and spin one wheel, If both wheels go the same direction it is a posi, if the wheels go in opposite directions it is an open rear end.

LockDoc

67chevy_hotrod · 01-12-2017, 03:19 AM

Cool, thanks again

Mike C · 01-12-2017, 09:19 AM

I've been fooled by rear axle id codes enough now I don't even bother checking. After 50 years I'm sure it could use a fluid change and a new cover gasket. And if I was working on it, I'd do a pinion seal as well.

Once you get the cover off, there is no doubt about what is inside.

67chevy_hotrod · 01-13-2017, 01:05 AM

This is true, however I serviced it right before I tore the truck apart, (no miles)and when I have the Cashola I am gonna do an all new 3:73 posi u and new axles and powder coat. But for now I was just curious! Thanks for the reply!

01-10-2017, 11:16 PM	#1
67chevy_hotrod Registered User Join Date: Jun 2014 Location: Lake Tapps Washington Posts: 386	Just another rear axle ID thread! Ok I pulled the rearend outta my 67 and I'd like to know what it is, but I couldn't match any codes or ID numbers.. it appears to have signs of spring perches at one point. However it looks like it was a decent job(good welds and grinded smooth) regardless I would like to know some about it.. here's some pics __________________ 1967 Chevy CST 10 1969 Chevy C/20 Longhorn 1969 K10 Suburban 1972 Chevy Cheyenne Super 10 turned K30 (sold)

01-10-2017, 11:17 PM	#2
67chevy_hotrod Registered User Join Date: Jun 2014 Location: Lake Tapps Washington Posts: 386	Re: Just another rear axle ID thread! __________________ 1967 Chevy CST 10 1969 Chevy C/20 Longhorn 1969 K10 Suburban 1972 Chevy Cheyenne Super 10 turned K30 (sold)

01-11-2017, 02:11 AM	#3
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,329	Re: Just another rear axle ID thread! - According to the charts it looks to be a 3.73..... The HA is what you use. http://67-72chevytrucks.com/vboard/s...d.php?t=578793 Don't mind the c14 designation. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

01-12-2017, 01:08 AM	#4
67chevy_hotrod Registered User Join Date: Jun 2014 Location: Lake Tapps Washington Posts: 386	Re: Just another rear axle ID thread! Right on. Thanks doc, I had dug up that thread but that C14 threw me off. Any way to know what it originally came from? Or if it's posi? I can't recall the wheel spin trick to determine posi, lsd, all that jazz. Thanks again __________________ 1967 Chevy CST 10 1969 Chevy C/20 Longhorn 1969 K10 Suburban 1972 Chevy Cheyenne Super 10 turned K30 (sold)

01-12-2017, 03:19 AM	#6
67chevy_hotrod Registered User Join Date: Jun 2014 Location: Lake Tapps Washington Posts: 386	Re: Just another rear axle ID thread! Cool, thanks again __________________ 1967 Chevy CST 10 1969 Chevy C/20 Longhorn 1969 K10 Suburban 1972 Chevy Cheyenne Super 10 turned K30 (sold)

01-12-2017, 09:19 AM	#7
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,709	Re: Just another rear axle ID thread! I've been fooled by rear axle id codes enough now I don't even bother checking. After 50 years I'm sure it could use a fluid change and a new cover gasket. And if I was working on it, I'd do a pinion seal as well. Once you get the cover off, there is no doubt about what is inside. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

01-13-2017, 01:05 AM	#8
67chevy_hotrod Registered User Join Date: Jun 2014 Location: Lake Tapps Washington Posts: 386	Re: Just another rear axle ID thread! This is true, however I serviced it right before I tore the truck apart, (no miles)and when I have the Cashola I am gonna do an all new 3:73 posi u and new axles and powder coat. But for now I was just curious! Thanks for the reply! __________________ 1967 Chevy CST 10 1969 Chevy C/20 Longhorn 1969 K10 Suburban 1972 Chevy Cheyenne Super 10 turned K30 (sold)



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