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FRONT DRIVESHAFT

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by mudder, May 3, 2000.

  1. mudder

    mudder Registered Member

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    DO I NEED TO LENGTHEN THE FRONT DRIVESHAFT ON MY 77 GMC JIMMY TO ACCOMODATE FOR A SIX INCH SUSPENSION LIFT?

    TAKE IT TO THE MUD
     
  2. 78k5

    78k5 1/2 ton status

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    I have a 6" superlift on my 78 k-5 and I need longer front and rear driveshafts
     
  3. '73 K5

    '73 K5 1/2 ton status

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    From my past experiences...mild wheeling...I'd say:

    For a 4 inch lift maybe, but for a 6 inch you will definitely need to have it lengthened. On a pickup you might get away with it, but something short wheelbase like a K5, no way.

    '73 K5
    Chevy good...Ford bad
     
  4. Executioner

    Executioner 1/2 ton status

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    I tought the K series 10 1/2 ton truck, blazer have the same front driveshaft ?
    Ex: 78 Blazer 350,TH350,NP203............
    78 Truck 350,TH350,NP203............
    Don't they have the same front driveshaft ?
    or
    Ex: 87 Blazer 350,700r4,NP208.............
    87 Truck 350,700r4,NP208............
    Don't these also use the same front driveshaft ?

    Please corrent me if I am missing it.
    TIA
     
  5. '73 K5

    '73 K5 1/2 ton status

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    I didn't say so but I was thinking about the rear shaft too. Usually when you have to change the front driveshaft, the rear must be lengthened too. With a 6 inch lift on a K5 I'd change both. On a longbed pickup, just the front.

    '73 K5
    Chevy good...Ford bad
     
  6. Executioner

    Executioner 1/2 ton status

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    I am confused I thought we were talking about the front driveshaft !
    Don't you just love this wounderfull thing call reading and writing over the internet ?
    Good thing no one beleives every post they read !
    Now if one hunderd post say the same thing then maybe you can ! , but then again maybe "NOT"
     
  7. '73 K5

    '73 K5 1/2 ton status

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    What's your problem Executioner? I gave my opinion about the front AND rear shafts. Does that extra info bother you? Or is it the fact that I misspoke and corrected myself? I'm just trying to help the guy that posted the question as much as possible.
    Are all of your posts 100% correct? I doubt it.
    I have an idea. Instead of you complaining about the accuracy of the folks that use this website, you could quit reading it instead.

    '73 K5
    Chevy good...Ford bad
     
  8. Executioner

    Executioner 1/2 ton status

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    Sound like a good idear !
    By Bye
     
  9. Kyle89K5

    Kyle89K5 1/2 ton status

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    I would have to say yes. I'm planning on new ones with a 4". It just seems like good insurance. You might be able to get away without doing it but I wouldn't think so.
    Best way to tell for sure is to put the lift on and see how much spline engagement you have left. That would be the only sure fire way to tell.

    Hope some of this confusion helps

    Kyle
    89K5
     
  10. Kyle89K5

    Kyle89K5 1/2 ton status

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    Looks like the we got a case of Board Rage going on. Ain't no need to get pissed at each other. Grain of salt guys. There is no need to turn an informative forum in to a pissing contest.

    COME AWN!!!!!!!!

    Kyle
    89K5
     
  11. 3030

    3030 Registered Member

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    After putting on a lift, what is the minimum amount of spline engagement that should be acceptable.

    There ain't no way I'll get stuck in that hole.....oops.
     
  12. Corey-88K5

    Corey-88K5 1/2 ton status

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    Here is a idea. Determine which trucks have longer shafts either the P/U's or Burb's and get those from a junk yard (if they are inexpensive) and have them shortened. If you have your shafts re-tubed it gets pretty expensive.

    Just a thought to save some fellow K5er's some money.

    Corey
    88K5

    [​IMG]<font color=red>Girls Like Guys In Bow Ties
    http://www.geocities.com/corey_perez
     
  13. Emmettology 101

    Emmettology 101 3/4 ton status

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    As far as the front shaft goes.. I have a 6" lift and I have a 1" spacer on mine front shaft and it could be a little bit longer.
    The front drive shaft should be the sam on a Blazer AND a p/u if they both have the same drivetrain compenents! From the front bumper to the t-case the Blazer and p/u are Identical........... So if you had a Blazer and a p/u both with a 350/T350/NP208 setup, they would bith use the SAME driveshafts.

    Mike
    82 GMC Jimmy "Emmett"
    IN TOO DEEP Off-Road Club
     
  14. Executioner

    Executioner 1/2 ton status

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    Thank you
     

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