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08-02-2010, 09:15 PM
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#1 |
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Registered User
 Join Date: Jan 2010
Location: jackson
Posts: 676
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Help please ID'ing my just bought rear
I am trying to identify exactly what I bought. The PO wasn't sure if its a 70 -72 but sure it came from a blazer. Its a 12 bolt, 6 lug and it looks like a posi.
 On the back lower side of the rear, facing back is a date code of C292 which I am assuming is MArch 22 1972. The stamping on the axle tube is:  The stamping on the axle tube is: RA Z W094 2 E How can I tell what gear ratio it is. On the ring gear is stamped 381779 14 :43 and GM 3 72 2 As always THANKS!! Last edited by 67gmcstepside; 08-02-2010 at 09:19 PM. |
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08-02-2010, 09:52 PM
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#2 |
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Senior Member
Join Date: May 2004
Location: Binghamton, NY
Posts: 3,469
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Re: Help please ID'ing my just bought rear
12 bolt posi with 3.08s.
__________________
2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 4” SAS 1999 GMC Yukon 350/4L60 6" SAS |
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08-02-2010, 10:55 PM
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#3 | |
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Registered User
Join Date: Oct 2009
Location: Leesburg, VA
Posts: 424
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Re: Help please ID'ing my just bought rear
Quote:
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08-03-2010, 07:54 AM
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#4 |
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Registered User
Join Date: Jan 2010
Location: jackson
Posts: 676
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Re: Help please ID'ing my just bought rear
Thank you very much guys. How did you determine it was a 3:08?
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08-03-2010, 08:41 AM
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#5 |
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Registered User
Join Date: Apr 2000
Location: Chester County PA, USA
Posts: 1,228
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Re: Help please ID'ing my just bought rear
43 divided by 14 = 3.07
__________________
72 k/10 short wideside 72 k/5 Blazer 72 K/5 Blazer - obstacle course racer 72 custom/10 8' bed 70 K/5 Blazer 67 C-30 GMC Flat bed 86 GMC K2500 Plow Truck 85 GMC K3500 84 M1008 85 M1008 77 G30 Motor Home 72 Sears 12hp Tractor Glenmoore, Pennsylvania |
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08-03-2010, 09:17 AM
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#6 |
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Registered User
Join Date: Jan 2010
Location: jackson
Posts: 676
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Re: Help please ID'ing my just bought rear
Thank you!
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08-03-2010, 01:17 PM
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#7 |
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Registered User
Join Date: May 2010
Location: Chilliwack British Columbia Canada
Posts: 199
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Re: Help please ID'ing my just bought rear
Looks good! make sure you check out the carrier for any cracks before you install it,I had mine stress relieved,involves removing the assembly and smoothing out the casting marks(sharp edges)
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