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01-05-2026, 12:00 PM
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#1 |
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Registered User
Join Date: Nov 2021
Location: Berlin, Germany
Posts: 17
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Rear axle without Posi
Hello from Germany and Happy New Year! I have a '69 C10/Custom with a 12-bolt axle and RPO 4G80AF (POSITRAC AXLE). I'd like to install a standard differential without a locking mechanism – can I use any differential carrier from another 12-bolt axle, or is the year of manufacture a factor? Michael
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Better awake girls than dream women ... |
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01-05-2026, 01:34 PM
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#2 |
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Senior Member
 
Join Date: Nov 2013
Location: East Tennessee
Posts: 2,408
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Re: Rear axle without Posi
It must be from a 12 bolt truck, the 12 bolt passenger car is different.
Also it must be for the correct ratio, the break is at 3.73
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1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer ............. 
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01-05-2026, 08:38 PM
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#3 |
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Senior Member
  
Join Date: Jan 2005
Location: CA
Posts: 7,025
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Re: Rear axle without Posi
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