The Rear Suspension Is Done 

Turns out the chassis is really just a large bracket.

The most amazing part is seen at 2:50 - an engineer updating CAD after change in production

Matt, Thank you for not throwing in the stereotypical time lapse montage. I just have to say I appreciate your well cut and edited voice over video style so much. I genuinely wish more automotive project channels would copy your format. It is far more entertaining to watch and way more informative.

Bart reminds me of a young version of my high school biology teacher. Sometimes I feel the car community takes themselves too seriously. These vids are fun & educational. Keep it up.

“It takes a truly special engineer to make a dodge more dodge than dodge did” 😂

You have the patience of a saint to have TIG'd that entire thing, holy shit.

Technically, I think that wire might be keeping the rear body section on the frame. You know, just in case you went doing extended freefalls or something.

Was waiting for the “unfortunately this creates a stress concentration at a critical area. Surely this won’t haunt me later.” At 7:02 😂

Always love watching a fellow adhd engineer work; creative, always problem solving, and sometimes disastrous.

I understand wanting to push the Easy Button and just go with a tube for the panhard structure, but I am a little disappointed we didn't get patented Superfast "Rocket" Lightening Cutouts. You know the ones.

The cable is just to keep things more or less together in case of a crash.

I basically held it together until the “Fortunately…unfortunately…” sequence 😂 that got me 🎯💀

I really dig the reality that an engineer wings it as much as the rest of us peasants. I love this build, as it is the best end use of a Dodge Viper in the history of Dodge Vipers.

2:02 That is a structural wire rope. Under compression it aids in supporting the fiber glass structure above.

What I love about this channel is the honesty of the problems faced and how you over come them.

Matt, The "real" function of the lock nut on a rod end is to eliminate the back lash between the threads of the rod end and what ever you are threading it into, the fact that is keeps the rod end from turning is secondary. Every threaded joint that is screwed together without any preload has backlash, which a lock nut eliminates. So as your suspension is working the rod end is moving back and forth taking up the built in backlash, not much movement initially but after a few hundred miles of heavy off roading it will increase in size and and as it gets larger it can cause the rod end to move in and out of the female thread, completely eliminating it ability to locate the rear axle and may eventually fail the threads. Your little 10-32 or 1/4-20 set screw will initially keep the rod end from turning but eventually it will just gouge out a slot in the rod end threads as they move back and forth from the thread clearance and make removing it a real SOB. As you are working on the off road project I guess it means we won't be seeing the streamliner at Bonneville in a couple of weeks? If you happen to go to the salt just to watch be sure to stop by the Schimmer and Son "I" fuel lakester no.984. Rex

You have quickly become my favorite automotive youtuber. Your project is unique and nuanced, the video series feels well-organized, and your voiceovers are hilarious. A major breath of fresh air in a stale niche. I am appeased. Continue.

I have to say, I love how this channel doesn't have a scheduled publish date, I feel like every SuFaMa video is a surprise, to be sure, but a welcome one

0:25 already a great start to another great video. All hail!

Matt, I found your channel a few months ago and binge watched every upload over several days. While I very much appreciate and admire your incredible design and fab skills I have come to the conclusion that your very unique humor takes my viewing pleasure to defcon 10. You are by far the funniest darn car/motorcycle guy in RU-vid.

Awesome progress!! If you want bump stops for this build, we’d love to design you a set that’s perfectly set up for the viper 🤙🏼

The last car with as many brackets was Binky the 4x4 Mini Toyota... Fantastic episode as always!

Excellent episode Matt 👍 Complicated problems explained simply - and with the aid of a Sawsall - what more do you need? Algorithm hailed...

The dry sarcasm is SO strong in this one! Absolutely hilarious, and yet still superbly informative. Go (fast) Matt!

Having just passed the mechanical engineering FE, I can vouch for Matt's engineering. That shear and moment diagram was nothing short of masterful. In fact, I bet this Viper will be even safer than it was from factroy.

Your engineering is just as good as anyone else's who can spell engineering.

I have concerns over the grub screw replacing the locknut. The nut does more than just stopping it turning, you will get movement in the threads. If you're only going to use this for a short time i don't see it being a problem, but given enough use it would chew itself up. It's probably fine though, this is for other people that might not know it's not ideal.

For someone who's only recently learned how to weld, your results are looking much better than before. Keep up the, uh, good work.

*ABOUT TIME* to get distracted and start a new project I would say... 😀

I'll say it again, "Dry humor for the win!"

This is the first video I’ve seen of you, and I’m already sold! Very excited to go back and catch up on this series!

that set screw constrained rod end is giving me flashbacks to when a youtuber talked about how threads need jam nuts to not have the threads bang off of each other...

So glad that I am not the only one who forgets to fully figure out where things are going to go. Had a similar situation when converting a customers MGB to RHD (he was taking it home to the U.K.). It is kind of hard to do when your steering rack attaches on the other side of the column. Thanks for always taking us along for the ride of engineering and mayhem that is your channel.

It's supposed to be pronounced as pahnahr, as in Louis François René Panhard, it's French name after all! :)

Can hardly wait to see it rolling; in all meanings of that word.

I’m loving this series. Your thought processes and fabrication are so entertaining and relatable, and your humor is peak comedy.

This is so ridiculously over the top, it's next level awesome! Like SuperfastMatt Awesome! I can't wait to see what this thing will do offroad. All Hail the Algorithm

Hey! It seems your welds are improving. Slowly. Nice

I think that your engineer's humour is getting even better with each video. This project seems like a form of torture in some ways, but it sure is enjoyable for the viewer.

Crazy Baby ! Stir it up !😊❤

im so excited about this project, you're an inspiration. Also I want to mention that your vids are so dense and packed with detail that it seems like this 16min vid is an hour long. I usually speed up all vids to 1.25 or even 1.5 speed which helps a lot, but yours I'm tempted to slow down! okay I just tried it and while the pace is better for my absorption of the amazing content, it does make you sound like your drunk. anyway, thanks matt!

The suspension and rear frame are about 50% weld by volume. Great work!

This is so much work. My hats off to you! Great content!

Best guess for the cable is it helps support the fiberglass when trunk is filled with bags of sand. Looking sick!

By overdoing the suspension, you were just trying to move the CG lower. Perfectly respectable excuse.

I'm so glad you are doing this build. I like your other ones, but this is just so unique. Thanks Matt!

One of the best build channels out there

"Make Dodge more Dodge than Dodge did." Classic Matt.

This comment is here for the algorithm. All hail the algorithm. (also, the only time I see cable straps like that on cars is to keep suspension bits from flying off the car during a "bad" trackday.)

So many more things to do means more videos to come and that makes me excited! Keep it up Matt!

All hail the algorithm! Thanks for yet again another entertaining video.

Matt is living my dream life as an engineer! Keep up the amazing automotive engineering content. Very fun dead pan humour mixed with harsh truths of business ethics (when it comes to engineering). Tickles my brain and my funny bone, truly the best combination. Bless you

I've built a few 3, 4 and 5 link suspensions from scratch. I've never had the benefit of CAD but have certainly used cad (lowercase... as in cardboard aided design). There are 2 million things you need to consider, and 1 million more things that will pop up when you cycle the suspension for the first time. and tenth. Great vid as always, keep up the good work!

@SuperfastMatt - I just wanted to drop you a line to say how much my son and I enjoy your videos. He's only 14 but more into cars that I am these days, and we do a bit of competition together. Your narration is so much fun whilst still be very educational, even if you tend to (always) choose to ignore your education and just guess. My son is hoping to be a mechanical engineer, but there isn't much of a car industry here in Australia, so he'll have to work for money to fund his passion for engineering cars like the rest of us.

Excellent work as always!

The cable is standard practice for body on fram vehicles. In the event of the body mounts failing from rust or damage, the body could leave the frame and you'd just die. The cable is a last resort to keep the body with the frame. Most trucks have them aswell

the Honda s600 project has been what I've always (3 years) been most exited to get content on but this has now tied it.

OMG, you are a welding God. Nobody else would even consider TIG welding the sub frame connectors.

The jeep factory bars are solid

Great job on the video Matt! Thanks for making it.

I actually do really enjoy welding montages if its close up and you can see whats happening. Welding is very satisfying.

You need to reattach that sway cable to something..

Great writing as always Matt.

Mechanical engineer here watching your endeavors, and I full approve your builds!

I genuinely don't know what this channel is about anymore... but I love watching every second of every video you upload. Awesome

Always happy to see a new video :D

For your rear control arms. You could use offset hiem joints/ rod ends to fix your interference. There are also extended shank joints available for your lower link situation. Barnes 4wd makes both

The way you engineer on this channel brings me great joy because I dropped out after engineering 1 and you're an "actual" engineer; and your approach to stuff like suspension design is pretty much the same as mine.

I love your blend of humor and education

You're becoming a good welder matt, grinding and tacking with no gloves on. All you need to do now is swap the hood with a good safety squint and you'll be a certified professional

Barnes 4wd long shank enduro joints will fix the rod end issue. Get those and put a jam nut in. Thank me later. I've seen set screw links fail spectacularly on offroad Rigs. You were definitely right with going with the larger rod end but the jam nut is essential. Trackbar wise, the factory jeep trackbars are solid bar. On my jeep I ran 1.5" .25wall dom with a bend and 7/8ths rod ends. They're plenty strong and you'll probably be good with 3/16th wall. 1/8 wall would have more than likely failed by tearing at the welds, from my experience.

This is my favorite car channel on you tube and has been since (I think?) hotrod plugged you over a year ago. It also makes me feel good that over engineering is an acceptable form of engineering, provided your primary goal is to reduce math and time not welding 😂

Thank you for adding 'willy nilly' to my vocabulary. It perfectly describes the way I do my projects, too.

@SuperfastMatt I had to download these service manual, I can send it to you if you wish. The service manual call that cable a "Trunk floor reinforcement cable". I suspect it's meant to tension the bottom of the trunk to provide some stiffness.

My dad has a body shop and yup. He uses mig for those applications. He used to work a lot with aluminium tig welding for custom parts but he sold his tig machine to my uncle and he went off somewhere else to do that. He still welds masterpieces with a mig tho. Like a from scratch akrapovic exhaust manifold copy for his gsr 600 suzuki. I rode his bike just this sunday and it sounds crazy

Youre really going to want to retain that jam nut if possible. The repeated push and pull on those links will eventually gall and destroy the threads on those heim joints. The jam nut keeps it in constant tension. Itll also eliminate any "clicking" when getting on and off the gas from the threads lashing against each other.

It feels like progress is going pretty well

Great job mate. Enjoyed watching. Keep going.

Lol wow these videos are an exact vocalization of how i talk to myself during projects. SUBSCRIBED

matt i really love the bit where you think your good at cutting and welding . and yes you are making a "dodge more dodge than dodge did" , sir i salute you all hail the algorithm

A welder and grinder make up for an amazing amount of mistakes. Great update! All hail the algorithm.

If I'm being honest, I'd prefer to listen to you describe hours of welding than watch a timelapse. Your talking is this channels strength. It's kinda like you're trying to convince physics you're not insane, and that's just the type of insanity I subscribed for.

Love the Matt way of improvising and cutting and doneing the things. It's better to do something. I always stop in planning.

Another fantastic video of a project that would give me heart palpitations considering how many parts need to be put together (and sawzalled apart again).

One of the reasons I dig these videos is the brutal honesty. It's refreshing.Thanks.

Damnit. I was going to find out what the cable was for. I'll be checking back. Thanks Matt

Love the show. Love the sarcasm. Love the problem solving.

I used to only TIG, but had to buy a MIG to do some fluxcore on a project outside with wind. I now almost exclusively use the MIG because it is just so much faster. It's not as satisfying to do, but when I need to put metal together and don't necessarily care how the welds look the MIG is pretty unbeatable.

All Hail, Matt you are like all good engineers, " if I can make it complicated" no need to make it simple!!!!!!!!!!!!

I had to breathe out through my nostrils a couple time throughout this video. High praises :D Really enjoying this.

"It's been working for a century, so it's slightly more proven than some bullcrap i came up with a few weeks ago" what a crack up 🤣🤣🤣

I Love your Channel! Keep up the Wonderful work!

I think the mystery cable helps to control where the rear subframe goes in a collision. Usually you want it to go under the floor of the car so it doesn’t intrude on the passenger compartment. Totally unrelated, but are those rod ends going to work without jam nuts? My understanding is that in addition to locking the rod end, the jam nut passes the forces through the mating surfaces instead of the threads.

I love the SendCutSend logos added to the brackets and control arm.

the suspense is building

13:26 there are 3 rules of the workshop. 1. Always use the right tool for the right job 2. The right tool is always a hammer 3. Everything is a hammer. I've been a mechanic for 14 years now, and those 3 rules have always kept me safe.

I like these videos so much I bought one of the "Check Engine" lights fr my garage. With all the time I spend trying to turn those lights off in my cars I felt it appropriate ti have one on on the wall.

Love this build and your Style of Videos so much! Thank you and greetings from Germany! All Hail the Algorythm

Just found you...... awesome build.... exceptional humor. 👍👍🍺🍺

"Squishy fail" is my new most favorite term