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Thread: more height- raising your trailer

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    more height- raising your trailer

    My camper trailer was bottoming out mostly at the back a possibly due to the high tow bar and extra lift LLAMS on my Disco 3.

    Excuse this becoming a seperate post but I thought it might be better as a seperate topic.

    Options considered were. Lowering spring mounts, bigger springs, air ride or adjustable shockies and a few other wacky ideas.

    My dad mentioned Blocks used to lower suspension on boof boof cars . He suggested if I moved the axel under the springs i could (if needed) add a block and hold it all with larger U bolts.

    Yesterday I droped the axel off and put it under the springs. Added some better quality shock absorbers. The axel had a whole to line up with a Pin ontop of the springs. The pin was on the bottom as well for the plate so rotating the axel had this lined up with no issues. Brakes - hand brake was now 180 degrees out so off came hubs and rotated the lot on both sides of the axelin about 20 minutes. The u-bolt plate is now on top. The mount for my Shockies is now higher and this along with beefed up shockies has given me at least another 3 inches. I can bring that back if needed by adjusting the lower shockie mount if needed.

    With zero Dollars apart from needed new shockies I have much more ground clearance. I might need to add a little under the hard floor to level it out but as I wanted to beef up the boat rack this was going to occur.

    Towed at high speed and tossed it around some sharp corners last night at indecent speeds with no concerns noted for stablity. Yet to hits some rough roads with it but think it should be fine. The total time to get my free rise was about 3 hours.

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    Good work! I wish it was as easy to lift my pop-top.
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi, RTK base station using LoRa

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    pop top lift

    I wonder if it might work for you Graeme. The pop top might have a higher centre of gravity but bet the axel is above your springs as well. It really comes back to where we tow them of course. Wonnangatta and Victorian Alps is my preferd play ground. Ground clearance is need front and back.

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    Sounds like a great job done well. I have done my own research on this issue and have found a great camper with independant suspension on air bags. So if you want more height you just pump up the air bags. The independant suspension also helps with rock filled creek crossings as sometimes a bar axle can get caught up after you get the diffs of the car through. The down side, they are more expensive and in my case the wife doesn't always understand the logic of spending the extra.
    98 Defender 110 tdi Boomer


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    My van has independent suspension with inboard mounts so the wheels would have inappropriate positive camber. I might in future duplicate the chassis and mount a trailing arm setup if its warranted.
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi, RTK base station using LoRa

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    The trouble with independent suspension is that when the wheel lifts up to go over a bump there is a corresponding and equal downward movement at the pivot point. A solid axle (cart type) always follows the the wheel movement, therefore increasing axle clearance and not reducing chassis clearance as on independent suspension, i.e. "every action has an equal and opposite reaction", Regards Frank.

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    Quote Originally Posted by Tank View Post
    The trouble with independent suspension is that when the wheel lifts up to go over a bump there is a corresponding and equal downward movement at the pivot point. A solid axle (cart type) always follows the the wheel movement
    I don't see your point. The independent pivot is only used to locate the wheel on a horizontal plane so has no impact on vertical movement. Why do you say there will a downward movement when the body will actually be moving upwards if anywhere?
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi, RTK base station using LoRa

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    Quote Originally Posted by Graeme View Post
    I don't see your point. The independent pivot is only used to locate the wheel on a horizontal plane so has no impact on vertical movement. Why do you say there will a downward movement when the body will actually be moving upwards if anywhere?
    The chassis must move down, unless there is no pivot point and the spring is solid, why do you think solid axle 4wd's have better ground clearance off road, you know, equal and opposite reaction, Regards Frank.

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    I still don't understand your view. In what way does the chassis go down when the wheel goes up? I'm obviously not looking at suspensions the same way that you are so perhaps we should just leave it there.
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi, RTK base station using LoRa

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    Quote Originally Posted by Tank View Post
    The trouble with independent suspension is that when the wheel lifts up to go over a bump there is a corresponding and equal downward movement at the pivot point. A solid axle (cart type) always follows the the wheel movement, therefore increasing axle clearance and not reducing chassis clearance as on independent suspension, i.e. "every action has an equal and opposite reaction", Regards Frank.

    Not the case with independent trailer suspension. They work on two A Frames, one each side of the trailer. The forces work verticle inside the sping or air bag. The point of the A holds the axle and spring or air bag. So when the wheel is pushed up the force goes up behind the wheel straight up to the chassis through the spring or air bag at the wheel point. This pushes the trailer chassis up at the wheel thus lifting the trailer. The pivot point, the base of the A just holds the suspension in place and allows the movement of the spring or air bag.
    98 Defender 110 tdi Boomer


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