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what ratio would be in an 83-86 C20 with 350 and three speed auto and 9.5"

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by R72K5, Jul 8, 2003.

  1. R72K5

    R72K5 Banned

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    what ratio would be in an 83-86 C20 with 350 and three speed auto and 9.5\"

    anyone know what ratio would be inside a 9.5" SF 14 bolt under an 83-86 carb 350 and three speed auto C20 base model pickup ?

    hoping for 4.10 but..

    thanks
     
  2. nevercomplete

    nevercomplete 1/2 ton status

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    Re: what ratio would be in an 83-86 C20 with 350 and three speed auto and 9.5\"

    I believe the axle ratios available on your truck are 3.21 3.73 and 4.10.
     
  3. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Re: what ratio would be in an 83-86 C20 with 350 and three speed auto and 9.5\"

    I bet it's 4.10, but it could be a 3.73. I'd push for the 4.10s. All but one 3/4 ton I've taken apart was 4.10.
     
  4. R72K5

    R72K5 Banned

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    Re: what ratio would be in an 83-86 C20 with 350 and three speed auto and 9.5\"

    thanks /forums/images/graemlins/laugh.gif
     

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