1. 

   vin1489 vin1489

   I wouild like to replace the open rear end in my 1970 Gs with a posi unit. Which years will fit? Can be a 10 or 12 bolt.
   Thanks, Vin

    

   vin1489, Mar 16, 2005

   #1
2. 

   70 gsconvt Silver Level contributor

   Anything from 65-72 A-body will fit. The 65-67 are 1" narrower. Your best bet is to track down an 8.5 rear or 12-bolt. Much cheaper to build and find parts for.

    

   70 gsconvt, Mar 16, 2005

   #2

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