Gear Vendor OD crossmember idea

Transmission and Drivetrain Tech

  1. Kent mosby

    Kent mosby FABO Gold Member FABO Gold Member

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    I have a 1973 scamp with RB and 727. I have reviewed many threads on the OD install with options from cutting floor pans and tunnels to altering the transmission crossmember to lower the tail of the transmission to get clearance for the OD unit. Has anyone tried to use an aftermarket crossmember like the uscartool for a 518 transmission and welded the mount to accommodate the transmission in a lowered position? Any comments both positive and negative on this approach. I can change the rear pinion angle if needed by angle shims. DSC01891.jpg
     
    Last edited: Apr 7, 2021
  2. cuda20

    cuda20 Well-Known Member

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    I’ve installed a gear venders in a bb abody and it didn’t require any modifications. You will need to shorten the driveshaft that’s it. It’s been in the car for 6 years now with no problems.
     
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    • Kent mosby

      Kent mosby FABO Gold Member FABO Gold Member

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      Thanks for the info. I don't think I have seen any of your install pics. Would you happen to have any available either during or after?
       
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      • Kendog 170

        Kendog 170 Let the boy go !

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        :popcorn: Hoping someday to do the same.
         
      • cuda20

        cuda20 Well-Known Member

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        I don’t have any on my phone but when I get home(I work in a camp) I’ll post some
         
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        • Fred Scigliano

          Fred Scigliano Off center a bit

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          I have a Gear Vendor in my 73 Scamp with a 904 not sure if there is any difference in cross member.
           
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          • AJ/FormS

            AJ/FormS 68 B'cuda fb, Form S clone ... 367/A833/3.55s

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            the GVod is bolted to the adapter, which means it ends up sitting way behind the crossmember.
            I raised my transmission, with the GV installed, until the unit hit the floor, marked the areas of interference, dropped the GV down and clobbered the floor for clearance. The GV weighs almost nothing. I did that several times, for a perfect fit. I did this for a better front U-joint angle. (68 Barracuda)
             
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            • Kent mosby

              Kent mosby FABO Gold Member FABO Gold Member

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              I have a 4 post lift. My thoughts were to place the car on jackstands on the lift and chain the car down to the lift. This would make the car unmovable. Then use a bottle jack sitting on the movable cross piece of the lift and press the floor/tunnel up precisely where needed. Anyone tried to do that with any success?
               
            • mderoy340

              mderoy340 Well-Known Member

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              use the template on page 2 and 3
               

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              • halifaxhops

                halifaxhops It's going to get stupid around here! FABO Gold Member

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              • abodyjoe

                abodyjoe Well-Known Member

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                are we talking gear vendors or a 518 style trans??? two different animals..

                i know a few guys running the gear vendors in an abody and there was not need to hack anything or lower the trans.. most that was needed was a small dimple in one spot for clearance busing a small ball-peen hammer...
                 
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                • Kent mosby

                  Kent mosby FABO Gold Member FABO Gold Member

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                  Gear vendors. I was just thinking that If I needed to lower the transmission to fit without cutting the floor, Maybe I could use a different trans crossmember
                   
                • abodyjoe

                  abodyjoe Well-Known Member

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                  shouldn't have to "cut" anything.. just dimple..

                  if ya drop the trans some with that short driveshaft it will be a mess angle wise in my opinion.
                   
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                  • Kendog 170

                    Kendog 170 Let the boy go !

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                    I'm assuming you have to reset your rear pinion angle ?
                     
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                    • cuda20

                      cuda20 Well-Known Member

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                      You probably will yes. You can buy buy different degree shims that go under the spring perch to achieve the proper angle
                       
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