L13 Three Point Articulating Sub-frame mount. Leviathan Amphibious Overlander Project

The cabin sub-frame is officially mounted to our Chevrolet 2500HD chassis. In this video we install the fresh and grey water tanks to the sub-frame and get the mounting system buttoned up. Officially known as an articulating dual axis 3 point mount; the system will allow the cabin to stay rigid, while the chassis is free to flex and twist underneath. Smoothing out the ride when the off-road adventure gets rough.

[@JarvieDigital]

Awesome!! Shout out to whoever helped get that thing onto the chassis ;)

[@54mgtf22]

Wonder who that might have been 🤔

[@benpease4497]

Great to have you back! Looking forward to seeing the cab being mounted.

[@BuilderCreator]

That will be a great day!

[@aeris-mo]

Awesome work ! Inox, 3 points, water system...

[@thereefaholic]

Great work as always. From experience I would squirt some spray foam under that 2” insulation. Over time it will vibrate and squeak and drive you crazy. On some vehicles I built I had similar heating pads and found them ineffective on the top of the tank and needed to remove them and place them on the bottom. I also had issues with the tubing freezing and put in some heat traces to deal with that.

[@cchello2029]

That cab looks awesome! Reminds me of a starwars AT-AT

[@BuilderCreator]

I should put a laser cannon under the chin!

[@aarondcmedia9585]

@@BuilderCreator definitely! Iron dome FTW!

[@DavidGuyton]

Ohhhh that cab looks super cool!

[@pivotalevent]

Is going to look a lot like the Arc from the TV series. Seems like i remember a lot of jetpack flying in the series as well. You need to get one of those Rocketeer packs operarional! Hey, Craig A you reading these comments?

[@DavidGuyton]

@@pivotalevent I got one working but I crashed it in Montana on the way to your shop.

[@BuilderCreator]

Hope you fared better than Luck Lindy!

[@54mgtf22]

Love your work 👍

[@noanyobiseniss7462]

That Aircraft wire is called Safety wire or at least thats what we called it in the marines.

[@pivotalevent]

Safety wire it is, and if you used it in the Marine corp, then you know a small amount is no good - The bigger the blob the better the job!

[@Stoneface_Garage]

Great Progress! Not 2nd guessing, but those washers under the Alum plate are still a "shear threat" - why not go to something like 2" dia. while you're there...

[@pivotalevent]

I guess we need to do a calc. What is the pull through strength of 3- 1 inch washers in 1/8 6061 t-6 aluminum? And sometimes you just can't wait for one more order (of hardware) to come in to move the job along. I had the 1 inchers on hand.😉

[@havemotorhomewilltravel1154]

You heated the top of the tank can I ask why not put the pad on the bottom Great build thanks for sharing

[@BuilderCreator]

The type of silicone heating pad we used can not take the weight (or at least the shifting weight) of the tanks/water on top of them. I may be able to service them on top with a lot less effort as well. Thanks for the question and following the build. Glad to see some RVrs coming to the channel.

[@prince_charming]

Hey, what about your Sportscar? I cant remember the final video. Is this Project done? could u post the last Video with the Result, please?

[@pivotalevent]

Arete is still in progress. Videos comming!

[@davidburne9477]

A few long threads exposed there. Are you going to cut them down close to flush?? All that weight adds up…….

[@aarondcmedia9585]

The cab looks awesome! Fighter jet awesome. Fresh, shiny Aluminium FTW! Your blind threaded rod inserts to hold the tank looked magical - well done on such accurate locating. Curious what the hole in the roof of the cab is for? Air con or swivel turret mounted 50 cal? ;-) Love this project to bits, great work, looking forward to more.

[@BuilderCreator]

Hole- Reconnaissance drone launching port.

[@thunderdick6117]

I'm sure you already know that the closer you can drill the aluminum frame to the center the less chance for them to crack . It would be great if you had a way to drill the holes without leaving a sharp corner and leave them rounded over.

[@clydecox2108]

Awesome

[@the_ure]

So all of the words and argued benefits of a three point triangle mount system, but all of the physics of a 4 point... (and it has 4 mounting points ) =)

[@fveggerby]

Around 1:50. You know what? That yellow thing is NOT a hammer. ;)

[@BuilderCreator]

Dewalt dual action combo driver/hammer!

[@videosvideos6243]

I have been wondering about your build. I thought you quit.

[@pivotalevent]

Not quitting, just trying to get back on the bucking horse!

[@justindastar]

didn't know he was part of cloud 9

[@vincentschweer453]

Hey, why do you build this vehicle? Will be the transporter trailer for your supercar? Best regards from Germany.

[@BuilderCreator]

Will certainly be capable of moving the Arete.

[@dwaynetaylor4856]

I found your build is going to be a long way for you have any attachments

[@bradmaas6875]

That thing is just falling together. A good plan helps

[@BuilderCreator]

So it seams in an edited video. In actuality it has been a bit of a battle this last few weeks as the dearth of video releases has shown. Ha!

[@bradmaas6875]

@@BuilderCreator Then you're making it look easy

[@gator701]

On the sub frame how high does that sit above the main frame? I an effort to keep the total height as low as possible, what is the minimum separation between the frame and subframe?

[@BuilderCreator]

I have placed the subframe 16 inches above the chassis frame for several different reasons. First, it allowed me room between the frames to mount water and gray water storage. Second, it allowed 8 inches of upward wheel travel without having to have wheel wells protruding into the cabin. And finally, it is still low enough that the rear door can fold down, acting as the staircase, and not be too high.

[@gator701]

I'm concerned about the habitat being top heavy and placing the subframe too high off the ground. The subframe requirement is about main frame twist. Too many builders use a habitat construction that is vulnerable to twist damage, based on lightweight engineering and glued joints. Planning some twist isolation is obvious, but how much is still not understood by me.

[@fax182]

Any news from the Arete project? Hi from Italy

[@BuilderCreator]

Still working on it. Should have a video out shortly. Vi auguro una buona giornata!

[@mindyjefferson6153]

Nice video! Thanks !! I am suprised that you haven't researched Promo'SM!!