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12-08-2016, 10:46 AM
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#1 |
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Registered User
Join Date: Feb 2016
Location: Washington Court House Ohio
Posts: 92
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C20 rear diff.......
A friend recently picked up a survivor 1969.... The title, door jamb VIN plate, frame and SPID serial number(s) all match correctly.
Upon decoding the VIN, it was originally a C20 camper special, 2 wheel drive, it was converted to 5-lug front and rear, and currently has a 12-bolt rear diff... The SPID does not list the HO52 rear diff, would a 3/4 had an 8-lug 12-bolt from the factory? Thanks.... |
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12-08-2016, 10:56 AM
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#2 |
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Restoring it $200 at a time...
Join Date: Aug 2008
Location: NE Kansas
Posts: 887
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Re: C20 rear diff.......
HO52 isn't on my '68 SPID. I assumed that was the base rear end for this truck, so it wasn't called out on the SPID.
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Charter member of the 'Put the dimmer switch back on the damn floor where it belongs' Society '68 5.3L-4 speed LWB C20; grandpa bought it for the farm in '71. Now LS 5.3, rather than 327. DD '09 Pilot Weekender '65 Skylark 300-4V-4 speed Wife's '07 Lexus ES350; 117 actuator motors and I can't see the engine. Son's '04 F250 SuperCab 6.0 |
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12-08-2016, 11:01 AM
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#3 |
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Registered User
Join Date: Feb 2016
Location: Washington Court House Ohio
Posts: 92
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Re: C20 rear diff.......
Thank you, I am seeing many pics of 2 wheel drive C20's with a floating rear hub visible.... I assume that is the HO52 rear diff....
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12-08-2016, 03:52 PM
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#4 |
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Registered User
Join Date: Apr 2006
Location: Spring, Texas
Posts: 167
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Re: C20 rear diff.......
Mine are both Dana 60 on leaf springs. 8 lug full floater.
Don't know what differences there might be in the 69 to 72 model years.
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'72 3/4 Cheyenne Super 402/TH400 Gear Vendors '72 3/4 Cheyenne Super 350/200R4 '50 1/2 Chevy 3 Window |
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12-08-2016, 05:08 PM
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#5 |
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Registered User
 
Join Date: Nov 2015
Location: BALSAM LAKE, WI
Posts: 33
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Re: C20 rear diff.......
This the rear end, tires and wheels off my 69' C20. It has trailing arms.
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12-08-2016, 07:10 PM
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#6 | |
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Registered User
Join Date: Feb 2016
Location: Washington Court House Ohio
Posts: 92
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Re: C20 rear diff.......
Quote:
Isn't that the HO52 diff? |
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12-08-2016, 07:15 PM
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#7 |
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Registered User
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
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Re: C20 rear diff.......
Yep, but that's not the OP's axle.
C20 could have had a Dana 60 or an Eaton H0xx. I think big block trucks primarily got the Dana and small block the Eaton.
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My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe |
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12-08-2016, 07:22 PM
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#8 | |
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Registered User
Join Date: Feb 2016
Location: Washington Court House Ohio
Posts: 92
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Re: C20 rear diff.......
Quote:
What is "OP"? and my friend's C20 was a small block |
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12-08-2016, 08:19 PM
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#9 | |
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20' Daredevil (Ret)
Join Date: May 2003
Location: Jefferson State
Posts: 13,722
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Re: C20 rear diff.......
Quote:
 To your question, 3/4 tons had 8-lug wheels. Pics would indicate if it's an Eaton diff. I have one but it's not listed on the SPID.
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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12-09-2016, 07:04 PM
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#10 | |
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Registered User
Join Date: Nov 2014
Location: Austin, TX
Posts: 281
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Re: C20 rear diff.......
Quote:
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72 K2500 Sierra Longbed Wideside 350/TH350/NP205 66 Plymouth Barracuda 225 Slant6 |
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12-08-2016, 07:21 PM
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#11 | |
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Registered User
Join Date: Jan 2015
Location: Vacaville CA
Posts: 896
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Re: C20 rear diff.......
Quote:
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1969 C20 Suburban "Rez Dog" Rebuild America one testicle at a time. US Army 1977-1979 12B Combat Engineer US Navy 1979-1983 Gunners Mate Guns (GMG) NRA Life Member Unrestrained Children in back seats cause Accidents. Unrestrained Accidents in back seats cause Children. |
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12-08-2016, 09:12 PM
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#12 |
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Petroleum User
Join Date: Dec 2010
Location: San Diego, California
Posts: 928
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Re: C20 rear diff.......
My '68 c20 with 327/th400 has the ho52 thats not listed on the spid
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 1971 GMC Sierra Grande 2WD 1/2 ton, 350/400 auto 2008 Chevy Silverado 2WD 1/2 ton LT1 5.3L auto |
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12-08-2016, 10:26 PM
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#13 |
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Registered User
Join Date: Feb 2016
Location: Washington Court House Ohio
Posts: 92
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Re: C20 rear diff.......
ok, thanks all for the replies, means the 12- bolt is a switchover......
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