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10-10-2009, 09:27 PM
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#1 |
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Junior Member
 
Join Date: Sep 2005
Location: Fresno,California
Posts: 224
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Junkyard find...
I found this rearend at the junkyard and brought her home. It will be replacing the one I now have that has 6.17 gears. I am not that familiar with this new one. I got it because it has 4.56 gears and the width and lugs were the same. I didn't really know what brand it was until I got it home and started doing some research. It appears it is a Dana 70HD. Opinions, thoughts, concerns.......are welcomed.......Flat67
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10-11-2009, 10:29 PM
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#2 |
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70 Chevrolet=Obsession
Join Date: Jun 2009
Location: nice ca
Posts: 1,067
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Re: Junkyard find...
That looks like it's out of a much newer truck than ours unless the PO added disk brakes to the rear. I would be concerned about how many modifications would have to be made in order for it to work in a 67-72 truck. Just my .02.
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 I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner) |
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10-11-2009, 10:58 PM
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#3 |
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Currently Blazerless
Join Date: Apr 2000
Location: St. Joseph Mo.
Posts: 4,826
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Re: Junkyard find...
Looks like a stout rear axle! it should be good for what you need if the width is right. I notice its a 10 lug axle..is it going in a C/40 truck?
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1972 C/30 133" W.B. C&C 1970 GMC 3500 157" W.B. single wheel C&C |
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10-11-2009, 11:02 PM
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#4 | |
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Junior Member
Join Date: Sep 2005
Location: Fresno,California
Posts: 224
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Re: Junkyard find...
Quote:
The rearend came out of a 1986 Big A## Motor Home. Im hoping that only the driveshaft/u-joint will have to be changed out. I don't know how the brakes will work out seeing how I'll end up with drum front and disc rear for now. But, I guess I'll soon find out........Flat67 |
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10-11-2009, 11:12 PM
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#5 | |
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Junior Member
Join Date: Sep 2005
Location: Fresno,California
Posts: 224
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Re: Junkyard find...
Quote:
The rearend is going into my 67 C30. It came stock with 10 lug rear and 5 lug front......Flat67 Last edited by Flat 67; 10-11-2009 at 11:13 PM. |
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11-01-2009, 12:38 AM
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#6 |
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Jonny
Join Date: Apr 2008
Location: Outside the Box, Austin,TX
Posts: 741
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Re: Junkyard find...
Does your truck have an I-beam type front axle? The newer 88-98 3500hd's have one and they are set up with 5 on the front and 10 on the rear. If I remember correctly they also run Dana 70 disc brake rears. Could be a good source for getting the parts to get your brakes working right.
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1966 C30, Cummins, stacks, and a flat bed in progress... "Honor.....simply put, A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it." -AEC Hundley USNR |
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11-02-2009, 04:32 PM
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#7 |
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Registered User
Join Date: Feb 2004
Location: Albany, NY
Posts: 522
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Re: Junkyard find...
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RN U OVR |
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11-02-2009, 10:08 PM
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#8 |
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Senior Member
Join Date: Aug 2008
Location: Cedar Park, Texas
Posts: 7,496
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Re: Junkyard find...
The rear disc conversion shouldnt be too difficult, mainly an adjustable proportioning valve. I would look into front discs from a 71-newer. 4 wheel discs! sweet!
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11-02-2009, 10:24 PM
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#9 |
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Registered User
Join Date: Nov 2008
Location: Petersville KY
Posts: 673
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Re: Junkyard find...
That Dana 70HD is a monster of a rear end, just about as bulletproof as you can get in a lightduty truck. I think if you can find front disc to fit having 4 wheel disc on your truck will be awesome, makes me want to build a ton!
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Rob 72 C/10 (under reconstruction)(destruction ? LOL) 48 Willys CJ2A 1952 Super "A" Farmall (Grandfather's) |
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11-03-2009, 01:36 AM
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#10 |
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Andy
Join Date: Feb 2009
Location: Cleveland, GA
Posts: 224
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Re: Junkyard find...
Our 69 D300 has a Dana 70 in it. 10.5" ring gear, 4.88 posi. Super stout rear. I pulled the axle out of one side to install a speedi-sleeve so that the wheel seals would quit leaking due to wear on housing...and the axles were huge. They dwarfed the dana 60 axles in my 'Cuda.
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1967 Camaro SS 406|522hp/514ft lbs|M20 Muncie|3.73s|Posi 1969 CST/10 383|Aisin AR5 5 speed 1972 K5 350|Turbo 350 4x4 2005 Duramax 2500HD 4x4 |
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12-05-2009, 08:39 PM
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#11 |
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Registered User
Join Date: Jul 2000
Location: East Bay,CA
Posts: 298
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Re: Junkyard find...
That was one Sweet find! I hope to own a 4 wheel disc C40/50/60 some day! Keep us posted on your progress
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51 Chevy 3100 Deluxe Cab(SOLD)  65 **stang 6cyl 70 C10 Long Bed Fleetside(1st truck,thanks Dad![SOLD]) 72 C10 Short Bed Fleetside 73 Blazer 2WD Catalina Blue White Top(Needs Love) 73 Blazer 2WD Work in progress LT1/4L60E 83 Grand National (SOLD) 94 Blazer K1500 Silverado (SOLD) 96 Impala SS All original (NEXT IN LINE 2 B SOLD) 99 Tahoe 2DR, 2WD 
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