BluePrint Engines

Visit our community sponsor

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 10 of 10

Thread: 4 link full droop driveshaft hitting frame

  1. #1
    Administrator 65 Cobra Dude's Avatar
    Join Date
    Feb 2011
    Location
    Port Charlotte, FL
    Posts
    843
    Post Thanks / Like

    4 link full droop driveshaft hitting frame

    I am building a Hot Rod for a customer with the 4 link suspension. The longer shocks are in the rear per the instructions and I have the suspension points on the lower holes. I cannot connect the driveshaft without lifting the rear end while at full droop because it hits the frame at the driveshaft safety loop on a Gen II Hot Rod. There are no limit straps. Anyone else run into this issue and if so, how did you fix it? I have a set of Roadster limit straps that I was thinking of making a bracket and using them.

    Thx,

    Henry

  2. #2
    Senior Member CDXXVII's Avatar
    Join Date
    Feb 2011
    Location
    Santa Clarita, CA.
    Posts
    524
    Post Thanks / Like
    Do you have your pinion angle set yet?

    Pictures?
    F5R #7841: Anniversary Edition MK4, Ford Racing 427, Edelbrock EFI, Gas-N Pipes, Stainless Headers, TKO600, 3.31 Moser 3-Link, 17" Halibrands

  3. #3
    Administrator 65 Cobra Dude's Avatar
    Join Date
    Feb 2011
    Location
    Port Charlotte, FL
    Posts
    843
    Post Thanks / Like
    I guess I am not sure how to set pinion angle on a 4 link? The upper and lower control arms are fixed length. If I am
    Missing something, please let me know?

    Thx,

    Henry

  4. #4
    Senior Member CDXXVII's Avatar
    Join Date
    Feb 2011
    Location
    Santa Clarita, CA.
    Posts
    524
    Post Thanks / Like
    Adjustable Uppers but only if needed.

    https://www.spohn.net/shop/Factory-F...ot-Joints.html

    Quote Originally Posted by 65 Cobra Dude View Post
    I guess I am not sure how to set pinion angle on a 4 link? The upper and lower control arms are fixed length. If I am
    Missing something, please let me know?

    Thx,

    Henry
    F5R #7841: Anniversary Edition MK4, Ford Racing 427, Edelbrock EFI, Gas-N Pipes, Stainless Headers, TKO600, 3.31 Moser 3-Link, 17" Halibrands

  5. #5
    Administrator 65 Cobra Dude's Avatar
    Join Date
    Feb 2011
    Location
    Port Charlotte, FL
    Posts
    843
    Post Thanks / Like
    Thanks for the link. I know there’s not a lot of 4 links out there but I’m guessing others have run into this issue as well and maybe there is another solution other than buying new uppers. Anyone use limit straps?
    Thx,

    Henry

  6. #6
    EFI Rules and Carbs Drool Arrowhead's Avatar
    Join Date
    Feb 2011
    Location
    Stillwater, NY
    Posts
    564
    Post Thanks / Like
    Are all the control arm bolts tight? When you torque all the bolts, it will take the slack out of the 4 link and uppers will straighten out and roll the axle back so the pinion will turn up. Other than that, yea, there's no adjustment on the 4 link other than the lower mounts on the axle.
    Arrowhead's '33 Hot Rod Build Site:
    http://sites.google.com/site/arrowheadshotrodsite/Home

  7. #7
    Junior Member
    Join Date
    Aug 2016
    Posts
    24
    Post Thanks / Like
    Do you have the correct transmission mount and spacing. I had to space my trans mount up a little to get everything to work

  8. #8
    Administrator 65 Cobra Dude's Avatar
    Join Date
    Feb 2011
    Location
    Port Charlotte, FL
    Posts
    843
    Post Thanks / Like
    DS,

    I am using the stock FFR tranny mount. Are you saying your driveshaft does not hit the frame at full droop? Looks like the tranny would need quite the shim. Everything is tight and I ended up using pickup truck tail gate straps as knit straps for now.

    Thx,

    Henry

  9. #9
    Senior Member
    Join Date
    Apr 2011
    Location
    Shawnee KS< KC Burb
    Posts
    836
    Post Thanks / Like
    Henry
    I used tailgate cables for limits on my 4 link. I ran them from the torque boxes to the chassis tubes so they were as far outboard
    as possible. If they were closer to the middle and only one side was at full droop it would allow the other tire to contact the fender.
    HTH
    Dale

  10. #10
    Senior Member
    Join Date
    Feb 2011
    Location
    Bourne-Cape Cod, MA
    Posts
    511
    Post Thanks / Like
    nevermind
    Last edited by FFinisher; 03-12-2019 at 11:40 AM.
    FFinisher/AKA RE63

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Lodestone Billetworks

Visit our community sponsor