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10-19-2013, 07:45 AM
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#1 |
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Registered User
 Join Date: Oct 2013
Location: CT.
Posts: 260
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Diff fit Question
Hello, I have a 94 roadmaster for parts and was woundering if the posi will fit in my 72 c 10
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10-19-2013, 08:00 AM
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#2 |
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Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,280
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Re: Diff fit Question
kenn, I'm gonna say no. The roadmaster has a 8.5 inch ring gear with 10 bolts attaching it to the carrier. The rear end in your truck is most likely a 12 bolt. Jim
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10-19-2013, 08:01 AM
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#3 |
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Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,727
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Re: Diff fit Question
Short answer: No.
Longer answer: Your C-10 has a 12 bolt cover truck-specific rear axle while the Roadmaster uses the GM corporate 10 bolt. The 10 bolt was also found in the back of trucks starting around 1980 in 2 wheel drive. They are 28 spline axle shafts until '88 when the new body style trucks received a 30 spline upgrade. The Roadmaster should be a 30 spline as well so would work in one of those.
__________________
44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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10-19-2013, 08:11 AM
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#4 |
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Registered User
Join Date: Oct 2013
Location: CT.
Posts: 260
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Re: Diff fit Question
Thank you. The frame on my roadmaster broke and I was hopeing that I could swap parts.
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10-19-2013, 02:15 PM
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#5 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,992
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Re: Diff fit Question
If the complete rear end is the same width backing plate to backing plate,you could weld on new mounts and possibly use it if you can find a U-joint set to match up,but the 12 bolt is a stronger rear.
__________________
The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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10-19-2013, 05:11 PM
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#6 |
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Registered User
Join Date: Oct 2013
Location: CT.
Posts: 260
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Re: Diff fit Question
Thanks. I need to put a posi in it and was looking to use what I had if I could.
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10-19-2013, 06:03 PM
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#7 |
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Registered User
Join Date: Sep 2009
Location: Prescott Valley AZ
Posts: 345
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Re: Diff fit Question
That 10 bolt posi is worth 100 150 on Ebay,then you could use that money to buy one for the 12 bolt
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10-22-2013, 09:55 AM
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#8 |
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Registered User
Join Date: Oct 2013
Location: CT.
Posts: 260
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Re: Diff fit Question
I will get my daughter to do that, thanks. When I am ready to buy one i'll check back, this site seams to have a lot of info.
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