74 Z28 Rear Sway Bar bushings - 11/16”

Discussion in 'Suspension, Steering, Brake & Wheel Topics' started by younda, Apr 20, 2021.

  1. younda

    younda Veteran Member

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    I received these 74 Z28 rubber rear sway bar bushings and the hole is too narrow and block too tall. Has anyone tried to drill these out to 11/16” and cut the block to make them fit. The block that goes onto the leaf spring is a little bit narrow also but think it might be ok once bolted down. Dumb idea?
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  2. kenny77

    kenny77 Veteran Member Lifetime Gold Member

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    Put some Silicone grease on the inside and outside of the bushing.
    Put them on the bar ,bolt up the bracket tighten down with an impact the bushing is made to squish to size and fit .
    We did hundreds of these at the Chevrolet dealer I worked at in High School. Believe it or not that bushing is the correct size . Don't go trimming or cutting anything
    The slot points towards the front
     
    Camarolina, younda and BillyDean7173 like this.
  3. Gary S

    Gary S Administrator Lifetime Gold Member

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    I've drilled out factory rubber bushings in the past to fit larger swaybars. It should work if you have a sharp bit with a cutting edge like a forestner bit.
     
  4. younda

    younda Veteran Member

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    Thanks! - I didn’t think for a minute that they were correct - tried in a vice.
    Not sure how the one that slides on is going to go but I’m off to get the silicone because I can’t find anything here.
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    Last edited: Apr 21, 2021
  5. TommyRS70

    TommyRS70 Veteran Member

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    Looks like u might have the 9/16 drop link bushings for SS F41 instead of 11/16...
     
  6. TommyRS70

    TommyRS70 Veteran Member

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  7. Camarolina

    Camarolina Veteran Member Lifetime Gold Member

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    Exactly correct.
     
  8. JUNKYARD AUTOCROSSER

    JUNKYARD AUTOCROSSER Member

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    I use energy suspension sway bar bushings. They carry them is many different sizes to fit many different application. In some cases, I have actually used a 3/4" bushing for an 11/16" sway bar because it fit better without any binding. I also use lithium grease to reduce binding. Be sure to install on level ground to insure no preload on swaybar which in turn will affect handling (understeer/oversteer in clockwise or counter clockwise direction. In some cases , you may have to adjust length of sway bar links or use spacers to get no preload. Good luck.
     

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