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jumping your blazer?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by quicker, Apr 16, 2007.

  1. quicker

    quicker 1/2 ton status

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    Anyone seriously jump there blazer and have the best suspension combo for doing it.
     
  2. RockinChevy

    RockinChevy 1/2 ton status GMOTM Winner

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    I'm the worst person to talk to about jumping Blazers. The frame and shock mounts or such aren't just made to handle the landing. Ask me how I know...



    I'm never doing it again.
     
  3. quicker

    quicker 1/2 ton status

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    I figure I would have to reinforce the whole frame..basicly box it and stiffen it up along with mounts and so forth. I weld as part of my job so the frame is the easy part.

    I have had quite a few 4X4's and one of my favorite units was a Suzuki samurai. I was able to get 5 feet of lift no problem and with 4 people in it. The only thing that ever broke was the shocks.

    I am not looking for a graceful jump or a long travel coil suspension.

    I figure strengthen it up structurally and I should be able to get enough flex out of my leaf springs 4" lift to take most of the punch.

    Not doing this tomorrow I still need to pick up my donor frame to box and so forth but I wanted to be sure I covered all the bases when building.

    Thanks for any advice.
     
  4. Thunder

    Thunder 3/4 ton status

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    If you are going airborne with 10 bolts be sure to put some strong trusses on them.
     
  5. quicker

    quicker 1/2 ton status

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    I figure I am going to need a 14 bolt anyway but I was going to go corporate 10bolt up front... I will probably have to go Dana 60. I know from experience that the front on all boxy cars and trucks tend to come down very hard. Lol spine crusher.
     
  6. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    make sure you have heavy duty shackles and make sure you don't do it on 30 year old springs, they WILL break!

    I remeber seeing a video of a K5 jumping, I'll see if I can find it...
     
  7. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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  8. buefchris

    buefchris 1/2 ton status GMOTM Winner

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    serious air time can cost serious money. Thats a lot of weight flyin' through the air too!:eek1:
     
  9. onlychevy6

    onlychevy6 1/2 ton status

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  10. imiceman44

    imiceman44 1 ton status

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    The frame is definitelt where you wanna start but springs also make a difference, lifted spring will not handle it very well they are arched and will not do very well, you also want to make a different shock attachment, the stock setup will not work
    You also want to lighten your truck as much as you can.
    Having a D60 is not necessary, if you are a good welder, make a nice boxed housing reinforcing your 10 bolt, you will do better.
    I jumped a stock 73 blazer quite a bit then worked with a jeep wagoneer, I can tell you the waggy did much better with it's flat sping and light body.:D
     
  11. quicker

    quicker 1/2 ton status

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    I have to admit after seeing the video i want to jump my truck right now...


    My lift is a 4" arced spring type and I was worried about that.. So I need a different lift as well then. hmmm time to get another job.

    So once I have welded up my frame and mounts i will need to redo my lift.




    Any suggestions for a lift combo that will take 38" tires and take the abuse of the odd jump..or two?



    I am excited about the option of the corporate 10bolt because the 14 bolt and corporate 10 mesh very well together. Ratio wise.


    Quick
     
  12. imiceman44

    imiceman44 1 ton status

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    While you rework your frame, incorporate some lower spring hangers and make them strong, then you can have flatter springs with the same amount of lift, and a smoother landing.
    :D
     
  13. quicker

    quicker 1/2 ton status

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    That’s the best plan yet.. I also saw there was a best of the best spring combo for this rig and figure I could maximize (lengthen) my spring options at the same time as strengthening the mounts.



    I am actually a good welder and not only run a strong bead but the industry I work in also expects a pretty weld. I will definitely take some pictures as I go.

    For now I just want to drive it so I will be getting that mount and slapping the new engine and transmission back together.

    I now have a picture box on the site so I will load pictures of the new engine trans and frame once I get it going.
     
  14. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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  15. y5mgisi

    y5mgisi 1 ton status

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  16. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    That white K5 looked like it had a D60. If I'm not mistaken RyanB's '72 with a D60 had the same thing happen at Pismo or Glamis.

    I did this about 6 years ago...D44 and 14 bolt at the time. Crappy Rancho front springs and stock rear springs with 4" blocks plus RS 5000 POS shocks.

    [​IMG]

    The next morning I got rear ended by a drunk (F-100 at 50+ mph) and still drove it over 300 miles home.

    Rene
     
  17. chevyfumes

    chevyfumes Court jester

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    Watch for the muzzleflash!
    That pic does not do the vid justice at all. you flew that thing half way back to Canada...;)
     
  18. Jishory

    Jishory 1/2 ton status

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    look up a guy on here called zcarczar, he has jumped his blazer quite a few times and built it for speed
     
  19. gmc4cw

    gmc4cw 1/2 ton status GMOTM Winner

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    X2 here is mine jumping.

    http://s117.photobucket.com/albums/o47/gmc4cw/?action=view&current=nov25th016.flv

    not very far or high, but still fun. I hit the jump about 5 times before they got the video right. shocks will play a big factor in your landing. I run 2 per wheel up front. somewhere I have a video on tape where I launched the truck around the distance as that white blazer.
     
    Last edited: Apr 18, 2007
  20. y5mgisi

    y5mgisi 1 ton status

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    Says the file no longer exists
     

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