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Technical Lowering blocks

Discussion in 'The Hokey Ass Message Board' started by LarsL, Jan 31, 2023.

  1. LarsL
    Joined: Sep 28, 2012
    Posts: 300

    LarsL
    Member
    from Norway

    Where can i find 3 inch lowering blocks 49-54 chevy that i can use with 56 rear Axle?
    I will use the orginal springs so i need them to be with ofset pin.
     
  2. Happydaze
    Joined: Aug 21, 2009
    Posts: 2,276

    Happydaze
    ALLIANCE MEMBER

    Easy enough to make with aluminium blocks. Replicate the pin with an Allen bolt into a tapped hole. You can fine tune your axle placement depending on where you put the pin and the hole for the axle pin.

    Chris
     
  3. LarsL
    Joined: Sep 28, 2012
    Posts: 300

    LarsL
    Member
    from Norway

    Looks like Im going that route.
     
  4. gnichols
    Joined: Mar 6, 2008
    Posts: 11,403

    gnichols
    Member
    from Tampa, FL

  5. DDDenny
    Joined: Feb 6, 2015
    Posts: 21,539

    DDDenny
    Member
    from oregon

    Two inch heavy wall square steel tubing.
     
    Last edited: Jan 31, 2023
  6. Budget36
    Joined: Nov 29, 2014
    Posts: 15,021

    Budget36
    Member

    Are the spring widths of the tri 5’s the same as yours?
     
  7. I’ve made em from steel tubing
     
    olscrounger likes this.
  8. LarsL
    Joined: Sep 28, 2012
    Posts: 300

    LarsL
    Member
    from Norway

    Edit, yes it is. I didnt read your question right earlyer. Its a drop in Axle so to speak hence the ofset issue.
     
    Last edited: Jan 31, 2023
  9. try Chev's of the 40's
     
  10. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,215

    wheeltramp brian
    Member

    There are adjustable ones from Speedway Motors that you can move the pin back and forth. I have it set at work I can get a picture of in about an hour and a half
     
  11. Lone Star Mopar
    Joined: Nov 2, 2005
    Posts: 4,158

    Lone Star Mopar
    Member

    The 52/52s run narrow 1 3/4' springs. If any way possible get the tri five rear springs too. Otherwise you'll probably end up making what ya need pretty simple.
     
    VANDENPLAS likes this.
  12. lowrd
    Joined: Oct 9, 2007
    Posts: 418

    lowrd
    Member

    Try looking at 4x4 sites with blocks for Jeeps to raise them.
     
  13. Moriarity
    Joined: Apr 11, 2001
    Posts: 35,948

    Moriarity
    SUPER MODERATOR
    Staff Member

  14. LarsL
    Joined: Sep 28, 2012
    Posts: 300

    LarsL
    Member
    from Norway

    I had a minute of brain fart earlyer today. I think i make them.
    First i was thinkin one less thing to make but hey, it dosnt take much time.
     
    VANDENPLAS likes this.
  15. LarsL
    Joined: Sep 28, 2012
    Posts: 300

    LarsL
    Member
    from Norway

  16. You can drop the tri five axle is a direct bolt on to your leafs ( you need to modify the Center pin to Center the axle in the wheel well )

    I have used aluminum blocks and made my own pin and hole to Center the axle

    cheap n easy .



    it looks weird as the tri five has a 2 1/4” spring perch
    And the 49-54 chevies are 1 -1/4 or something thin and silly .
     
  17. guthriesmith
    Joined: Aug 17, 2006
    Posts: 11,420

    guthriesmith
    ALLIANCE MEMBER
    1. H.A.M.B. Chapel

    I typically just build my own blocks anymore out of square tubing as mentioned since it is easy to source and you can offset the pin anywhere you need it and build them any thickness you want. Thanks for reminding me that I need to build a set of blocks for my GMC since no one makes tall enough ones...lol
     
    Bill's Auto Works and verno30 like this.
  18. LarsL
    Joined: Sep 28, 2012
    Posts: 300

    LarsL
    Member
    from Norway

    I think the Hole needs to be a bit ofset wide wise also. I think it differs about a half an inch or so. But i fix.
    The springs are 1-3/4 on mine yes. So the blocks need to be 1-3/4 right.
     
  19. FrozenMerc
    Joined: Sep 4, 2009
    Posts: 3,326

    FrozenMerc
    Member

    Safety Tip:
    Make sure that you re-torque your U-Bolts after the first few thousand miles. Torqueing a 1/2" U-Bolt to 90 ft-lbs can generate up to 14,000 lbs of clamp force, per leg. That is 56,000 lbs of force compressing your blocks, spring pack, bolt saddles, etc together. In other words, expect stuff to change dimensions under that loading and the u-bolts can loosen quickly after the initial torque.
     
  20. flyin flattie
    Joined: Oct 13, 2005
    Posts: 602

    flyin flattie
    Member
    from Redmond OR

    Use a 2x3 block drill one hole on the bottom and tap or bolt and nut a Allen at the top. You will need to off set the center home though because the inclosed drive rearend is off set compared to the open drive line. I think it’s like 1.5 off set if I remember correctly
     
    guthriesmith likes this.
  21. LarsL
    Joined: Sep 28, 2012
    Posts: 300

    LarsL
    Member
    from Norway

    I think its about 1.5 ofset yes. Havent messured yet but sounds about right
     
  22. Acres
    Joined: Dec 19, 2021
    Posts: 1,455

    Acres
    Member
    from Sweden

  23. mlagusis
    Joined: Oct 11, 2009
    Posts: 1,210

    mlagusis
    Member

    Yes, the rear spring width is the same. We put a 56 Chevy rear end in my son's 1950 Chevy Fastback. We used a set of Posies rear springs with the offset to run a later rear end.
     
    guthriesmith and LarsL like this.
  24. LarsL
    Joined: Sep 28, 2012
    Posts: 300

    LarsL
    Member
    from Norway

  25. Acres
    Joined: Dec 19, 2021
    Posts: 1,455

    Acres
    Member
    from Sweden

    Ok, just wondering wich blocks they used on my Chevy, they are 3 inch with a 55 or 56 axle with original leafsprings
     
    guthriesmith likes this.
  26. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 14,027

    Johnny Gee
    Member
    from Downey, Ca

    No idea what you guy’s just said.
     
    VANDENPLAS, Happydaze, Acres and 2 others like this.
  27. Moriarity
    Joined: Apr 11, 2001
    Posts: 35,948

    Moriarity
    SUPER MODERATOR
    Staff Member

    assuming the u bolts are long enough, just stack the blocks for 2 3/4 drop
     
  28. I am here to tell ya'....

    That sh1t does happen!:eek:

    God Bless
    Bill
    https://www.jalopyjournal.com/forum...ar-transport-hauling-open-or-enclosed.614419/


    "Losers make promises they often break. Winners make commitments they always keep." – Denis Waitley
     

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