Overdrive by gear vendors

Discussion in 'Transmission & Driveline Topics' started by defiant1, Dec 24, 2015.

  1. defiant1

    defiant1 Member

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    I was thinking of doing a gear vendors overdrive mated to my old school turbo 350 trans. Will be in my 79 z28, has anyone used this option? I know it is kinda pricey but seems to possibly be a good option for me. My goal is to keep the interior stock and maybe still use my Hurst dual gate shifter. The car is a street driver but would enjoy that overdrive while on the interstate. I have the 3:42 rear gear in a factory 10 bolt and a small block with only 400 horse
     
  2. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    Someone here may have done this, but it's not a real popular thing. A more cost effective option would be an overdrive transmission like the 200-4R or 700-R4.
     
  3. jakeshoe

    jakeshoe Veteran Member Lifetime Gold Member

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    The GV won't fit easily under a Camaro.
     
  4. stevenp3762

    stevenp3762 BANNED

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    Too expensive, go 200/700. R4.
     
  5. 72BIGBLOCK

    72BIGBLOCK Veteran Member

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    Yup go 700r4
     
  6. rockheadrocks

    rockheadrocks Veteran Member

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    They can stand up to absurd amounts of power, but are pretty pricey and would require you to do significant modifications to your floorpan and trans tunnel.
     
  7. RS1979

    RS1979 Veteran Member Lifetime Gold Member

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    Not trying to hijack the thread. Will a 200-4R fit in a '79 without a great deal of floor pan or firewall modification?
     
  8. Twisted_Metal

    Twisted_Metal Administrator Staff Member Lifetime Gold Member

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    No floor pan or firewall mods needed at all.
    The TH350 driveshaft is even a direct fit.

    http://www.nastyz28.com/forum/showthread.php?p=445122
     
  9. RS1979

    RS1979 Veteran Member Lifetime Gold Member

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    Compared to the TH350, how strong is the 200-4R?
     
  10. mjoc

    mjoc Veteran Member

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    If built with the right parts they can be stronger then a 350. Remember the 200-r4 where behind the Buick GNX

    Michael
     

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