Custom box truck ramp design wanted for elise - LotusTalk - The Lotus Cars Community
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post #1 of 30 (permalink) Old 12-19-2017, 05:09 PM Thread Starter
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Custom box truck ramp design wanted for elise

I have a dock high box truck and I'm looking for a qualified person to design a ramp / winch system. The truck has a 20ft box, 8ft wide door, and 48" from the ground. It also has a 3000lb fold out lift gate system.

If you can do this, or know someone who might please send over some info.
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post #2 of 30 (permalink) Old 12-19-2017, 05:41 PM
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post #3 of 30 (permalink) Old 12-19-2017, 06:05 PM Thread Starter
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That sure looks like it would work! I will looking the details on approach /depart angles.
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post #4 of 30 (permalink) Old 12-21-2017, 10:47 AM
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Securing the car in the truck bed may be a challenge. Unless you have E-track or D-rings mounted into the floor of the box.
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post #5 of 30 (permalink) Old 12-21-2017, 12:40 PM
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Just raise that center support to cut the ground clearance requirement in half. I have a CAD file of the Elise if you need some geometry checked.
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post #6 of 30 (permalink) Old 12-21-2017, 04:37 PM Thread Starter
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Securing the car in the truck bed may be a challenge. Unless you have E-track or D-rings mounted into the floor of the box.
I have e-track on the side. Do you know of a specific d-ring that works well for floor mounting? Ideally I would like to keep the truck floor flat.
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post #7 of 30 (permalink) Old 12-21-2017, 04:42 PM Thread Starter
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Just raise that center support to cut the ground clearance requirement in half. I have a CAD file of the Elise if you need some geometry checked.
Yes, if you could send over the CAD file that would really help. Do you know how much higher the center should be increased?

Here is a drawing of the ramp.
http://www.discountramps.com/images/...-06-M-High.pdf
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post #8 of 30 (permalink) Old 12-21-2017, 05:17 PM
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Something like this?

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post #9 of 30 (permalink) Old 12-21-2017, 05:26 PM Thread Starter
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LOL! That is some gold right there. I can only hope these ramps are half that good.
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post #10 of 30 (permalink) Old 12-22-2017, 07:33 AM
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You are going to have clearance problems with any ramps to get into the back of a 48" high truck bed. Getting onto the ramps will scrape the front and getting into the truck will scrape the bottom.

You need some extensions fabricated for the lift gate to lift the car horizontally up to the truck bed.
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post #11 of 30 (permalink) Old 12-22-2017, 08:12 AM
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Two of these ramps bolted to a laft gate might work.

Guardian Aluminum Grit Coat Walk Ramps | Discount Ramps
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post #12 of 30 (permalink) Old 12-22-2017, 09:08 AM
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There are plenty of recessed D-Ring options, you may want to check etrailer. I have had good luck with these: https://www.etrailer.com/Tie-Down-An...ophy/RR06.html
Adding support mounts under the truck floor going across the floor cross beams will do the should make them very secure.
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post #13 of 30 (permalink) Old 12-22-2017, 09:29 AM
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You can use the lift gate to support your ramps. I did something similar to load my micro van into the bed of my tommy-gate equipped dually.
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post #14 of 30 (permalink) Old 12-22-2017, 09:31 AM
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I mounted a winch in the bed and used it to pull the van onto the bed. I had D rings welded to the bed floor to secure it.
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post #15 of 30 (permalink) Old 12-22-2017, 12:17 PM
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You can use the lift gate to support your ramps. I did something similar to load my micro van into the bed of my tommy-gate equipped dually.

Is that a Honda Motocompo in the back of your Subaru?
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post #16 of 30 (permalink) Old 12-25-2017, 10:06 AM
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Yes, if you could send over the CAD file that would really help. Do you know how much higher the center should be increased?

Here is a drawing of the ramp.
http://www.discountramps.com/images/...-06-M-High.pdf
I can a quick mock up and send it to you after the Holiday. The drawing is very helpful. For reference, this is something I built when I was hailing my Neon race car around in a school bus...
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post #17 of 30 (permalink) Old 12-25-2017, 05:13 PM Thread Starter
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You are going to have clearance problems with any ramps to get into the back of a 48" high truck bed. Getting onto the ramps will scrape the front and getting into the truck will scrape the bottom.

You need some extensions fabricated for the lift gate to lift the car horizontally up to the truck bed.
I think you might be right on having clearance issues. The box truck sits a little lower in the front. So getting over that top edge could be a problem.

Do you know who made this lift gate? Mine is more of a standard aluminum one for a pallet jack. It can left 3000lbs
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post #18 of 30 (permalink) Old 12-25-2017, 05:20 PM Thread Starter
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I can a quick mock up and send it to you after the Holiday. The drawing is very helpful. For reference, this is something I built when I was hailing my Neon race car around in a school bus...
That's an awesome setup! I love the school bus!

There is a different version of the ramp system that has two uprights, I don't see them in the drawing or pictures. It seems I need a longer length to get the angle lower. Which looks exactly like what you have.

Thanks so much for the help!
Two upright version.
http://www.discountramps.com/images/...-High-Rev1.pdf
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post #19 of 30 (permalink) Old 12-27-2017, 10:30 AM
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A quick study...
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post #20 of 30 (permalink) Old 12-28-2017, 01:48 PM
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All this said and done, if I had a lift gate that could lift 3,000 pounds this would be a no brainer. Get some ramp extensions like the one pictured above, and just lift it. That's way cooler than any ramps!
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