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  1. #21
    Join Date
    Nov 2011
    Posts
    126

    70 chevelle lower a arm dimensions

    In addition for the bushing hole diameter, what point did you measure to from the centerline of bushing to the ball joint seat to get the 4.875"? Was it to the "center" of the ball joint seat or to the nearest edge of the opening where the ball joint goes?



    And do you have a measurement for the location of the spring perch?

    Lastly, here are my layouts on CAD. These look good?

    Name:  Screen Shot 2020-05-16 at 3.32.12 PM.jpg
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    Doug

    1970 chevelle, carb'd, turbo'd 383ci with a tremec tko.


  2. #22
    Join Date
    Nov 2011
    Posts
    126
    OK so I can't figure out how to enlarge the photos. I just emailed them to you Scott.
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  3. #23
    Join Date
    Jun 2012
    Location
    Chicago burbs
    Posts
    158
    Country Flag: United States
    Quote Originally Posted by dug View Post
    In addition for the bushing hole diameter, what point did you measure to from the centerline of bushing to the ball joint seat to get the 4.875"? Was it to the "center" of the ball joint seat or to the nearest edge of the opening where the ball joint goes?

    And do you have a measurement for the location of the spring perch?

    Lastly, here are my layouts on CAD. These look good?

    Name:  Screen Shot 2020-05-16 at 3.32.12 PM.jpg
Views: 39
Size:  5.0 KBName:  Screen Shot 2020-05-16 at 3.32.54 PM.jpg
Views: 39
Size:  9.5 KB
    4.875 was the center of bushing to center of bj.
    The bushings are still in the stock arms , if you need I can press one out, but the better option may be to measure a new bushing and then the hole will be a few thousandths less for a light press.

    Definitely need the spring perch location,will grab that tomorrow during the rainstorm.

    1969 442 6.0L LQ9 T56
    Fab9 w/ custom 3 Link conversion
    FAYS2 Watts link
    Thanks to Mark at SC&C for his honesty and passion for the sport, and Ron Sutton for the wealth of knowledge that has helped shape so many of the cars on this site.

  4. #24
    Join Date
    Nov 2011
    Posts
    126
    Quote Originally Posted by jetmech442 View Post
    4.875 was the center of bushing to center of bj.
    The bushings are still in the stock arms , if you need I can press one out, but the better option may be to measure a new bushing and then the hole will be a few thousandths less for a light press.

    Definitely need the spring perch location,will grab that tomorrow during the rainstorm.
    Ok, my drawing didn't clearly show the BJ. There is a line that is at an angle and it measures 1.99" which would represent the BJ. Does that make sense? And is this correct?
    Attached Images Attached Images  
    Doug

    1970 chevelle, carb'd, turbo'd 383ci with a tremec tko.

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