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03-31-2005, 02:12 PM
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#1 |
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Glowing since 1978
Join Date: Mar 2001
Location: Lusby,MD,USA
Posts: 532
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What axle do I have?
This is a question that I post on the 60-66 board and got two different answers. I'm pretty sure it is applicable here because I think the axle carried over into 67-72 year trucks. I have a 66 C-30 dually. The pumpkin is round with a fill plug below the center point and off to one side. It has ten bolts on the cover. Two bolts on each side are close together where the axle housing head out toward the wheels. The question is what axle is it?
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66 Chevy C30 Stakebody Dump, PS,PB, 327cu in 71 Corvette Coupe 454 4 speed 69 Chevy C20 Custom Camper |
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03-31-2005, 04:58 PM
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#2 |
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user # 2756
 
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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H072:
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm 
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03-31-2005, 05:25 PM
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#3 |
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II Timothy 4:2
Join Date: Mar 2005
Location: Fort Worth
Posts: 361
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That looks exactly like mine. I've been wondering myself. Can anyone tell me what would the stock ratio be for that? I have a 72 C-30 Custom Camper.
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72 C-20 2WD LWB Custom Camper Deluxe 350 4 Speed "Project Lazarus" MY TRUE PRIDE AND JOY "Dangit, Bobby, people will see that oil stain and think I'm a drunk." |
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03-31-2005, 05:27 PM
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#4 |
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user # 2756
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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5.14
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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03-31-2005, 05:30 PM
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#5 |
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II Timothy 4:2
Join Date: Mar 2005
Location: Fort Worth
Posts: 361
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5.14? Would that be why the tach reads 4k at 65????
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72 C-20 2WD LWB Custom Camper Deluxe 350 4 Speed "Project Lazarus" MY TRUE PRIDE AND JOY "Dangit, Bobby, people will see that oil stain and think I'm a drunk." |
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03-31-2005, 06:29 PM
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#6 |
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II Timothy 4:2
Join Date: Mar 2005
Location: Fort Worth
Posts: 361
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After further research, I probably have the HO52. Still, that 4.11 really hurts on the highway.
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72 C-20 2WD LWB Custom Camper Deluxe 350 4 Speed "Project Lazarus" MY TRUE PRIDE AND JOY "Dangit, Bobby, people will see that oil stain and think I'm a drunk." |
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03-31-2005, 06:33 PM
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#7 |
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Glowing since 1978
Join Date: Mar 2001
Location: Lusby,MD,USA
Posts: 532
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Yes, that is the one I have under my truck. Funny this doesn't show up on coloradok5 website under the axle identification page or maybe it does and I'm to stupid to know it. Is this axle also referred to as a corporate 10 bolt? What does the HO in the designator mean? The 72 I understand from the factory manual. 7200# rated axle/differential. Thanks for the help.
Don
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66 Chevy C30 Stakebody Dump, PS,PB, 327cu in 71 Corvette Coupe 454 4 speed 69 Chevy C20 Custom Camper |
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03-31-2005, 06:35 PM
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#8 | |
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Glowing since 1978
Join Date: Mar 2001
Location: Lusby,MD,USA
Posts: 532
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Quote:
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66 Chevy C30 Stakebody Dump, PS,PB, 327cu in 71 Corvette Coupe 454 4 speed 69 Chevy C20 Custom Camper |
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03-31-2005, 06:52 PM
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#9 |
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Senior Member
Join Date: Apr 2002
Location: Help! I'm in an office park with its own network of freeways!
Posts: 470
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The Corporate 10 bolt is a semi-floater used mainly in cars & half-ton trucks. It also refers to the front axle of half-ton 4WDs.
As for the H072, it's a Regular Production Option code. The 072 you already know; the H designates "Rear Axle & Suspension Equipment" (same as G).
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'67 C20--427 tall deck/SM420, 4.10 HO52 (Michigan has not been kind to the Old Man) '95 Caprice--355 LT1/T56/3.42 8.5" 10-bolt (daily driver, almost 300k on the chassis) '07 Outback--wife's car. 125k & counting. No head gasket or transmission issues yet. *fingers crossed* Last edited by CE20934; 03-31-2005 at 06:53 PM. Reason: clarity |
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03-31-2005, 08:44 PM
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#10 |
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user # 2756
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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The "eaton" axle is a corporate axle, spanned from 47-72, it was replaced by what is refered to as the 14 bolt full floater (14BFF). It would not be a 10 bolt as it has 12 bolts holding the carrier to the ring gear.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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