Is there a safe way to keep front suspension compressed when jacking up front end?

Discussion in 'The Bench' started by BillA, Aug 1, 2019.

  1. BillA

    BillA Well-Known Member

    In order to get 8" of clearance under my front tires to use the Race Ramp cribs I have to fully extend the 3 ton jack that is positioned under the front crossmember. Has anyone ever used a cable or chains to keep the lower control arms from unloading? Whenever I change springs or remove the spindle I wrap a chain through the spring and frame to keep it from flying out if something goes awry. I'm wondering if I can do something similar to keep the spring compressed but I know there is literally a ton of force trying to expand the spring as the weight is removed.
     
  2. 1973gs

    1973gs Well-Known Member

    Why don't you just jack it up under the control arms?
     
  3. scubasteve455

    scubasteve455 Well-Known Member

    Ratchet straps? maybe
     
  4. copperheadgs1

    copperheadgs1 copperheadgs1

    So why do you need to do this? When something sounds like a bad idea it usually is.
     
    Last edited: Aug 2, 2019
  5. HotRodRivi

    HotRodRivi Tomahawks sighted overseas

    Start by putting a block under each tire. Now you should have clearance to put a block on the floor jack. One 4x4 block should be enough.
     
    1973gs and BuickV8Mike like this.
  6. 12lives

    12lives Control the controllable, let the rest go

    Race Ramp cribs look like a bad idea to me, same with the ramps, cinder blocks, tires, wood blocks, etc that people use. The issue is the wheel moves in and out as the suspension settles on the "whatever" and the dang thing can tip over. The only time I consider those is when torquing the lower control arm bolts (when the car is supposed to be at ride height) and then I also use a jack and stands to be sure.
    https://www.discountramps.com/wheel-cribs/p/RR-WCB/

    Be careful my friend!
     
    Last edited: Aug 2, 2019
  7. cluxford

    cluxford Well-Known Member

    Not my Buick but for my Camaro I needed to get it 6" in the air to get the engine crane under the suspension. I specifically made wood blocks for this purpose, but as Bill said above, I'm not a fan of those, too easy for car to move off them (even rears chocked). So I went a bit overboard. mine are 3 of 2x4's high (layered in a cross pattern of course), but then have a "fence" which is a 4th layer but sit outside the wheel as a "chock" around all 4 sides of the front wheel, so the front wheel is captured inside the block. She ain't moving
     
  8. 12lives

    12lives Control the controllable, let the rest go

    yeah Chris - and you weren't under the car!
    [​IMG]
     
  9. cluxford

    cluxford Well-Known Member

    Exactly Bill, those plastic stands would never give me enough confidence to slide on under, that's a deadly accident waiting to happen
     
  10. hugger

    hugger Well-Known Member

    Yall would pee your pants if you seen some of the sketchy stuff I've been part of ha,..
     
    65Larkin, 1972Mach1 and TexasT like this.
  11. BillA

    BillA Well-Known Member

    I’m not worried at all that these wheel cribs will fail. I have more confidence in these or even the 2x10 wood blocks that I used to use than I do in chinese made cast iron jack stand supports.
     
  12. BillA

    BillA Well-Known Member

    I thought about that but I have tubular control arms and the only flat spot is under the lower ball joint. The jack pad will mar the crap out of the lower arm and crush the grease fitting.
     
  13. BillA

    BillA Well-Known Member

    I don’t need to do it. I was just wondering if someone on this forum had a trick up there sleeve. I’m at the physical limit of the jack (nearly 24”) just to get 8” of space under the front tires.
     
  14. Philip66

    Philip66 Well-Known Member

    We bought my mom a decent used Camry to run her errands in. Unfortunately she let one of my nephews drive it for a couple of weeks. One day he noticed a puddle of oil under it but he didn't have time to do anything about it. This Einstein ran it out of oil and of course the engine locked up.

    My older brother had a friend with a Camry that had a bad Trans so he wanted to buy hers to make one car out of two. He jacked it up and blocked it up so he could get under the car to inspect it before spending $200.00...

    My mom sent me this unbelievable picture:

    image.jpg
     
    TexasT likes this.
  15. TexasT

    TexasT Texas, where are you from

    https://www.ebay.com/itm/5-IN-FLOOR...802213?hash=item3fc304a925:g:qP8AAOSwbF1aKYz6

    https://www.ebay.com/itm/Hydraulic-...73141310372?hash=item3f987da3a4:g:O5gAAOSwuIR

    Five" get you where you need? other wise there is a whole set. I usually just slip a 2x6 or two in there to get some extra then slip some under the wheel let the jack down a bit then slip another one or two on the saddle to get the height i need for the cribs I made.

    And how does one "Not have time" to do something about a puddle of oil under their vehicle? One of the things I taught our children when we were learning to drive was to look under the car as we approached it to see if it is leaking. I know I do in every vehicle I drive. If it isn't leaking I need to put more in.
     
  16. Philip66

    Philip66 Well-Known Member

    When you're on a marijuana run you just can't be bothered with trivial things like motor oil.
     
  17. 1973gs

    1973gs Well-Known Member

    What are you trying to accomplish? Why do you need more than 8" under the front tires? If you're just trying to get the car up higher, drive up on 2x6's, jack the car up and stack wood up under the tires. Then put a block of wood on the jack and jack up the car again.
     
  18. hugger

    hugger Well-Known Member

    I use wood blocks all the time but be careful the slightest little thing on the floor or jack wheels that dont roll too well will get you in a mess,..its really easy to make an extended cradle for the jack,.that's a better option,..but as I mentioned I'm a hard headed fool and that's just something else for me to do so...sketchy block of wood it is ha
     
    1973gs likes this.
  19. 1973gs

    1973gs Well-Known Member

    I agree. I do it all the time but my OTC floor jack is very stable and has a large dished saddle. I always stay as clear as possible and make sure that if it slips, I have an escape route. I don't think that I would stack wood on a small Harbor Freight jack.
     
  20. 12lives

    12lives Control the controllable, let the rest go

    Ha Ha - yeah its all those sketchy things that I've done that lead me to try to convince the young'uns to go a different route!:rolleyes:

    Bill A - I can't see them failing either but I question their stability. I see other styles that are wider at the bottom than the top which should be more stable.
     
    Last edited: Aug 3, 2019

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