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04-29-2013, 06:20 PM
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#1 |
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Registered User
Join Date: Mar 2013
Location: Cleveland, OH
Posts: 12
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What differential do I have
Hello all,
I have a mistery on my hands that no one seems to be able to solve. So, I thought I'd try here. I appreciate any info. Thanks The Truck: 1963 GMC C1000 Differential cover: 10 Bolt (3 inches from bottom bolt to next bolt in line) Gear Ratio: 3.90:1 Ring gear dia: around 9" (little rough measuring with a tape measure) Last edited by Mr_B; 04-29-2013 at 06:43 PM. Reason: mispelling |
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04-29-2013, 06:54 PM
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#2 |
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Registered User
Join Date: Nov 2009
Location: Galt, Calif
Posts: 2,437
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Re: What differential do I have
Top right hand side of axle housing will have series of letters / numbers, that will tell us what it is......
__________________
`64 C10 vortec 350/350/373 posi `69 RS/SS 350/350/308 `37 Ford 406/350/324 traclock `68 Dart 370/904/323 suregrip |
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04-29-2013, 08:35 PM
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#3 |
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Registered User
Join Date: Oct 2012
Location: Jamesville NY
Posts: 225
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Re: What differential do I have
Rear diff cover looks like a Dana 35 rear end. Thats what our 61 has in it.
Glenn
__________________
Glenn Korec Jamesville NY 64 C20 350ci Turbo 350 tranny 3.73 gear with air ride. 61 Apache10 (wife's truck) 327ci powerglide.  http://67-72chevytrucks.com/vboard/s...d.php?t=570100 |
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04-29-2013, 08:54 PM
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#4 |
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Registered User
Join Date: Jun 2006
Location: MO.
Posts: 970
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Re: What differential do I have
eaton h032
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04-29-2013, 08:56 PM
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#5 |
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Registered User
Join Date: Oct 2012
Location: Jamesville NY
Posts: 225
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Re: What differential do I have
Ok, does anyone know if the square plug
Can be removed to fill/check the rear did Gear oil? Posted via Mobile Device
__________________
Glenn Korec Jamesville NY 64 C20 350ci Turbo 350 tranny 3.73 gear with air ride. 61 Apache10 (wife's truck) 327ci powerglide. http://67-72chevytrucks.com/vboard/s...d.php?t=570100 |
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04-30-2013, 01:03 AM
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#6 |
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60-66 Nut
  Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,252
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Re: What differential do I have
Yes that rear plug is where you fill the differential with gear oil. The bottom of the fill hole is the proper level. And I agree with j.kirn, that is an Eaton HO32 differential.
__________________
Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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04-30-2013, 08:12 AM
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#7 |
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Registered User
Join Date: Oct 2012
Location: Jamesville NY
Posts: 225
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Re: What differential do I have
Thanks Capt Fab. Looking his pics I see some differences. Ours has studs with nuts to hold the cover on. His has botls. Thanks for the info on the plug to fill the level. I have tried removing our plug with no luck. Its most likely been on since 61.
 Glenn
__________________
Glenn Korec Jamesville NY 64 C20 350ci Turbo 350 tranny 3.73 gear with air ride. 61 Apache10 (wife's truck) 327ci powerglide. http://67-72chevytrucks.com/vboard/s...d.php?t=570100 |
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05-02-2013, 06:41 PM
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#8 |
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Registered User
Join Date: Mar 2013
Location: Cleveland, OH
Posts: 12
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Re: What differential do I have
Thanks a bunch. I now have a good idea where my options are.
Posted via Mobile Device |
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