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BELLHOUSING SWAP

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BTCRAWFORD, Dec 9, 2002.

  1. BTCRAWFORD

    BTCRAWFORD Registered Member

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    What year(s)of bellhousings can I swap onto my 80 blaze for a hydraulic clutch set up? It has the SM465 4-speed. /forums/images/graemlins/k5.gif
     
  2. TopOff

    TopOff 1/2 ton status

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    IIRC 86 - 91 (It might be 87 - 91).

    Have fun.
     
  3. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I think it's 85 that was the first year for hydro clutch. Let's call it mid eighties to be safe./forums/images/graemlins/thumb.gif

    Rene
     
  4. BTCRAWFORD

    BTCRAWFORD Registered Member

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    Did you have 4-speed to start with?
     
  5. dyeager535

    dyeager535 1 ton status Premium Member

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    Actually I believe '85 was the first year of the hydraulic bellhousing, and at least up till '91 in 3+3, K5, Suburban, etc.

    Not sure about the say '88 C/K trucks, if they used an SM465 in any of them, I'm not sure how the clutch is set up. It may have been passenger side clutch fork, but might be worth investigating. The block bellhousing bolt pattern didn't change, nor did the SM465 bellhousing bolt pattern, so if an '88 C/K has an SM465, and the clutch fork is on the drivers side, it might work too.

    Only reason I mention the '88+ C/K's is that the '85+ hydraulic bellhousing are kind of rare to find. The later the year of the truck, the less likely it would be to have a manual transmission.
     
  6. TopOff

    TopOff 1/2 ton status

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    I had the auto 350/203 to start with.
     
  7. doctor4x4

    doctor4x4 1/2 ton status

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    dude just get a after market kit that will bolt to you current belhousing lots cheeper and easyer
     
  8. BTCRAWFORD

    BTCRAWFORD Registered Member

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    Who makes a complete after market kit?

    Will it bolt up to the existing clutch pedal?
     
  9. m j

    m j 1/2 ton status

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    nothing that works/fits as well is cheeper or easyer.
    a hydraulic throwout conversion from Tilton or McLeod would be cleaner but replacement is ugly as the tranny must be pulled.
    the factory stuff is real sweet
     
  10. doctor4x4

    doctor4x4 1/2 ton status

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