1. GBM

    GBM Member

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    I have a 71 dart with a 408 and open 8.75 rear and want to make it a Sure Grip. What are my best options ? Thanks for any help
     
    Last edited by a moderator: May 12, 2019
  2. doug 371

    doug 371 Well-Known Member

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    Buy a complete ready to bolt in "sure grip" pumpkin would be fastest/easiest
     
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    • Frnknsteen

      Frnknsteen FABO Gold Member FABO Gold Member

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    • a12

      a12 Well-Known Member

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      He said Posi :lol:

      imagegif_0(1).gif
       
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      • d55dave

        d55dave Well-Known Member

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        You want to make it a gm rear end? LOL. The term posi or psitrack is a gm term, kind of like magnum is Chrysler, vortec is gm....... I think you mean to say you wqnt to add a suregrip (the chrysler term) to it.
         
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        • GBM

          GBM Member

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          Did you understand what I meant ? Point made
           
        • 451Cuda

          451Cuda Well-Known Member

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          posi-Trac-Plymouth-Meme.jpg
           
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          • RustyRatRod

            RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

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            He said he wants a posi, so his only options are something made by GM.
             
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            • mopardude318

              mopardude318 Well-Known Member

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              Fuck it then. You want to give attitude, swap in a 12 bolt.
               
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              • d55dave

                d55dave Well-Known Member

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                Yes, but do you go around telling people you want to put a 440 vortec in your roadrunner?
                 
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                • Red_Duster

                  Red_Duster Well-Known Member

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                  Here in CA, we prefer "limited slip differential" as its gender err...brand neutral. Sell it and buy a nova? :drama:
                   
                  Last edited: May 7, 2019
                • Bulldozer

                  Bulldozer free ice cream sandwiches

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                  what the hell is a posi 1557266501449855178195.png
                   
                  Last edited: May 7, 2019
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                  • abodyjoe

                    abodyjoe Well-Known Member

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                    Can ya set it yourself or do you need a shop to do it for you.

                    If you need a shop then I’d just call dr.diff and but an complete center section ready to go.

                    If you can do it yourself then find a stick style clutch pack style or go eaton tru trac.
                     
                  • SGBARRACUDA

                    SGBARRACUDA ROY FABO Gold Member

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                    Piece Of Shit Impala
                     
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                    • oldkimmer

                      oldkimmer FABO Gold Member FABO Gold Member

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                      If u go back to the 50s u will see that Chrysler first Thad the vortex, the suburban and a few other words/ terms that Chevy has now. Also Pontiac had Super Duty long b4 Ford ever thought of it. Kim
                       
                    • R4Sedan

                      R4Sedan Larry FABO Gold Member

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                      Tough crowd tonight.
                       
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                      • mycuda

                        mycuda FABO Gold Member FABO Gold Member

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                        As a site of information and hobbyist I don't think it should be that way.

                        That is if we want to keep our exclusivity.
                        Lets quit flexin your muscles here
                        and try to help out .
                        If you can...wow
                        How old are most of us?

                        Lets keep this a body thing rollin
                        That's what this is all about isn't it?
                         
                        Last edited: May 7, 2019
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                        • CudaFactHackJob

                          CudaFactHackJob FABO Gold Member FABO Gold Member

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                          Sure grip, limited slip, Twin Traction, Detroit locker, Cone style, Auburn, Whatever...they're all posi to me...or they're a negative.
                           
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                          • RustyRatRod

                            RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

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                            Oh lort.
                             
                          • RustyRatRod

                            RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

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                            Now that's funny I don't care who you are.
                             
                          • SGBARRACUDA

                            SGBARRACUDA ROY FABO Gold Member

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                            Take it easy Sally, were just having fun.
                             
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                            • RustyRatRod

                              RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

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                              Yeah no kiddin. Lighten up Francis. Nobody's flexin muscles. We're just funnin with the guy.
                               
                            • cosgig

                              cosgig MoBro Inc.

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                              What gear are you currently running? If you are happy with that ratio, you would need to buy a suregrip unit and install it into your pumpkin. If you’d like a more specific gear, your best bet may be to buy a complete center section in the ratio you prefer and swap the whole thing.
                               
                              Last edited by a moderator: May 12, 2019
                            • matthon

                              matthon Well-Known Member

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                              I was looking at the Dr Diff complete case third member earlier today.

                              I have a 741 open and wanted to upgrade to a 3.91 SG.

                              What is the reason for only offering a 489 case?
                               
                            • Scamp Rohnda

                              Scamp Rohnda Well-Known Member

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                              I don't think that's true. I just found an 8 3/4 Posi rear end on our very own for sale site here. Check it out. The point is we all understood what he said.
                              IMG_20170530_132250.jpg
                               
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