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Front Driveshaft on a '77 k5 PLEASE HELP

Discussion in 'The Garage' started by mtnman210, Feb 2, 2004.

  1. mtnman210

    mtnman210 1/2 ton status

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    Front Driveshaft on a \'77 k5 PLEASE HELP

    Does anybody out there have any suggestions to a problem I'm having with my front driveshaft. I have a 77 k5 Blazer and just put a 6in lift on it. the length is fine on the shaft but the angle is to steep I think. From what I can tell is t he knuckles coming out of the transfer case are hitting eachother and blowing out the ujoints. I've ground them down but the angle is still a little too steep for any hard prolonged use. If anyone has any suggestions I'd really appreciate it. Thanks
     
  2. GMCLegacy

    GMCLegacy 1/2 ton status

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    Re: Front Driveshaft on a \'77 k5 PLEASE HELP

    grind more. i will try to dig up some pics if youd like. is your front driveshaft a flange or yoke mount?
     
  3. mtnman210

    mtnman210 1/2 ton status

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    Re: Front Driveshaft on a \'77 k5 PLEASE HELP

    It's the cv-joint thats hitting
     
  4. mtnman210

    mtnman210 1/2 ton status

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    Re: Front Driveshaft on a \'77 k5 PLEASE HELP

    GREAT pictures on webshots...awesome
     
  5. GMCLegacy

    GMCLegacy 1/2 ton status

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    Re: Front Driveshaft on a \'77 k5 PLEASE HELP

    how does your front driveshaft attach to your tcase. is it a yoke style or flange? a yoke style has 4 small fine thread 7/16 head'ed bolts. a flange style has 4 course thread bolts with a or 5/8 head IIRC.
     
  6. mtnman210

    mtnman210 1/2 ton status

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    Re: Front Driveshaft on a \'77 k5 PLEASE HELP

    It's the flange 4 course thread bolts with a or 5/8 head... then between the tcase and the driveshaft ther's a 2 inch superlift spacer
     
  7. doctor4x4

    doctor4x4 1/2 ton status

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    Re: Front Driveshaft on a \'77 k5 PLEASE HELP

    how about angleing your front axle up a little to help the angle and lower your t case alittle
     
  8. mtnman210

    mtnman210 1/2 ton status

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    Re: Front Driveshaft on a \'77 k5 PLEASE HELP

    I thought of that but really I can't rotate it enough to make help i don't think because it will screw up my steering
     
  9. JK5

    JK5 1/2 ton status GMOTM Winner

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    Re: Front Driveshaft on a \'77 k5 PLEASE HELP

    Here's what I did...and I have a D60...

    1. Drop your t-case an inch.
    2. Grind c/v.
    3. Angle pinion 4*.
     

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