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Shackle flip or blocks ?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Ron, Jun 17, 2001.

  1. Ron

    Ron Registered Member

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    I have a 81 chev 3/4 ton and am in the process of lifting it. I have seen the shackle flip and it seems like a good idea but it seems like I hear alot about the vibration ( pinion angle)after it is installed. Has anyone cured this?How? What are the benefits of a shackle flip over blocks or vice versa?Thanks for any comments .Ron
     
  2. Seventy4Blazer

    Seventy4Blazer 3/4 ton status

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    shackle flip and shims if needed. and or a CV joint style shaft

    1974 Chevy Blazer Cheyanne. lots of plans for it....
    but it is on 33's now, with saggy old springs. i am in so cali if ya got any parts for me.
     
  3. '73 K5

    '73 K5 1/2 ton status

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    I have the 4 inch flip on my truck and never had a hint of vibration. Its just a better way to lift your truck instead of blocks. Blocks introduce a few problems...axle wrap being one of them.

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

    jimmyjack 1/2 ton status

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    I just did a home made flip this weekend. Look up my "Heads or Tails" post. There is also link with a few photos. All in all it took about 3-4 hours.

    "My blazer may be slow, but it goes faster at higher speeds"

    Jim
     
  5. Emmettology 101

    Emmettology 101 3/4 ton status

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    Blocks are cheap and easy, but the shcakle flip is a better method of lifting!

    <font color=green>MIKE</font color=green> - "Hukd on fawnics,werkd fer me!"
    <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>
     
  6. Espen88k5

    Espen88k5 1/2 ton status

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    Block's make my 88 shudder when I axelerate to hard from a stop. On the positiv side, I swear I am getting better gas-milage after the 4"lift and 35" muds because the shudder makes me gentler on the trotle where I would normaly floor it to get upp to speed.

    Negativ side, it cant do my u-joints any good, but those last shorter with a lift anyways, so I plan on changing them every year anyway.

    Just my 2cents worth

    <font color=red><A target="_blank" HREF=http://www.espen88k5.alloffroad.com>http://www.espen88k5.alloffroad.com</A></font color=red>
     
  7. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I've had 4" blocks for about 4 years or so, they do cause axle wrap but i need to break the tires loose to notice. I'll be doing a flip soon.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
     
  8. Pugsley

    Pugsley 1/2 ton status

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    The shackle flip is definitely better if you've got the money. I've got blocks right now (2 1/2" blocks with an add a leaf), and notice quite a bit of axle wrap when the wheels are broken loose. My stockers are trashed, so I'm planning to go with 4" Superlift rear springs sometime in the future.

    I'm so poor I can't even pay attention [​IMG]
    <A target="_blank" HREF=http://pugsley.alloffroad.com>http://pugsley.alloffroad.com</A>
     
  9. AZK5

    AZK5 1/2 ton status

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    Depends on what you're going to do with your K5. High speed sand and mud can induce wheel hop. If you're rock crawling the block keeps the spring up and out of the way. I have blocks and I've still dropped off of ledges onto the factory spring hanger bracket. It looks like a shackle inversion would make this worse ~4" lower. I don't want anything hanging down too catch rocks. The vibration is corrected with shims, CV driveshaft, or lowering the transfercase whether you have blocks or inversion. Blocks are low tech but they work better for me.
    CB

    1973 K5, 400TPI,TH350, 203/205, Dana60/Detroit/5.38 front and rear, 38" TSL's on steel wheels
    <A target="_blank" HREF=http://www.azk5.coloradok5.com>http://www.azk5.coloradok5.com</A>
     

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