Underneath the Cybertruck - Rear Cradle and EDM

Jordan and Kevin give their first impressions on the rear cradle and EDM of the Cybertruck.
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#tesla #cybertruck #elonmusk

[@themogget8808]

I loved the little segment where you showed the part being removed from the vehicle. It provides context and is fun to watch. Better than just starting the video talking about an already-removed part.

[@lemongavine]

Made me think about that fact that Tesla can build a Cybertruck faster than Munro can tear it down which is crazy when you think about it.

[@sleeknub]

@@lemongavinenot really. I bet that’s true of every vehicle, more-or-less. Maybe not handmade vehicles.

[@Sagiterrian77]

Yeah, it will help with roadside repair when you first try to get it home. 🤣😂🤣😂

[@cooluser23]

Please make more videos, and make them more granular. We love seeing you actually unscrew things and the disassembly.

[@MunroLive]

More videos coming.

[@sailirish7]

@@MunroLive Time-lapse disassembly/assembly would be fun to watch too

[@MunroLive]

No it wouldn’t as it’s a long slow process since we document everything for the reports.

[@MarkkuS]

This answer sounds like its Sandy answering 😊

[@TeslaElonSpaceXFan]

@@MunroLive 😍😍

[@peterwilliams3246]

Super advert for Munro, two experts, quietly confidently describing, discussing, comparing. Not “showmen”, but “knowmen” and it shows.

[@WSDFirm]

Acronyms defined. You’re the man!

[@fredbloggs5902]

Considering how early in the production this example is, the ‘cleanliness’ of the design is impressive.

[@markplott4820]

it was Developed from knowlage of Model S/X and Model 3/Y.

[@fredbloggs5902]

@@markplott4820 you don’t say! Thanks Captain Obvious.

[@user-ri5pj3iq9l]

@@fredbloggs5902 Why the snarky comment? I see no value.

[@markplott4820]

@@fredbloggs5902 - obvious to some, not so clear for others.

[@Hogla287]

I mean. They’ve been hacking on the CAD models for nearly 6 years now

[@jamesrose1191]

Great job on the explanation of the geometry of the rear.

[@MunroLive]

Thanks!

[@ulwur]

​@@MunroLive Will the toe-in of the real wheels change with the position of the suspension?

[@brianb-p6586]

@ulwur that's called bump steer, and since the tie rod length is reasonably coordinated with the control arm length bump steer should be reasonable. Munro doesn't typically address suspension geometry; their expertise is in manufacturing processes and costs.

[@EricP36]

Let’s go! Kevin and Jordan the dream team!

[@gegwen7440]

Yes my thoughts as well, always said that Jordan may well be the next Mr Munro when the main man has had enough.

[@robindehood207]

Jordan is just awesome

[@irgtk]

Succinct explanations, top notch videography, defined abbreviations, is what makes the go to source for engineering the Munro team .👍

[@JohnSmith-uz3dt]

What a great job. Go to work and take things apart.

[@MunroLive]

Yep

[@cooluser23]

The less fun part is having to document it all. I imagine lots of paperwork.

[@theonlymadmac4771]

I am a surgeon. Taking things apart is my daily routine!

[@mrmichrom8553]

@@theonlymadmac4771don’t break my heart 😂

[@theonlymadmac4771]

@@mrmichrom8553 😜

[@jacylegault1713]

thank-you for the insights and high production quality. it would be really interesting to see tear-downs side by side. R1T vs Lightning vs Cyber vs GM vs ICE for key areas like the suspension and drivetrain.

[@markplott4820]

Rivian is using HYBRID unibody . see - Teardown video. FUD motors & RAM, Silverado /GMC are using outdated Horse & Buggy technology . Legacy auto still using Ladder Frames & Body on Frame. Cybertruck using massive Gigacastings , 4680 Structural body , UNIBODY frame CLAID in Stainless steel, both axles are DESCRETE modules , unlike Compedators. aka MEGA CRADLE .

[@mayflowerconsulting5540]

These videos sure give me an appreciation for the amount of work to design & produce a car or truck. Its mind-boggling that they can make money on them w/so many parts, systems, warranties.

[@danapeck5382]

Thanks, these subassembly episodes are really interesting. The pacing is just right for this interested layman -- I replay what I don't get on the first try. Thanks for the willingness to decrypt acronyms. All the best

[@Crazyreseller]

Thank you for showing the disassembly! I asked, you delivered!!

[@cooluser23]

I have a suggestion: point out things that the aftermarket/3rd party can improve/modify. I'd imagine this would help you sell teardown and specs. documentations

[@markplott4820]

already DONE by Unplugged Performance, Evenex, and TSportine & others.

[@cooluser23]

@@markplott4820 and hopefully many others.

[@2nd3rd1st]

"Not to criticize Tesla, but..." No, please do, that's literally your job as design consultants! We value your candor, there are enough uncritical Tesla fanboys out there already.

[@foremasp]

What a tiny rear sway bar for a monster weight vehicle.

[@FutureSystem738]

Wow, the engineering design and development that has gone into all of this is truly mind boggling! Thanks - great work!

[@Jdchin87]

Thank you Jordan for explaining the acronyms! ❤

[@TogetherinParis]

You guys are international heroes!!!!!!

[@wtmayhew]

I’m not too surprised to see the add-on locator on the anti sway bar. It probably won’t be long before that afterthought is replaced by flange on the inboard side of the bushings. It may be that that when the anti sway bars were sourced that the mounting position of the bushing cradles had not yet been finalized. If this is the biggest last minute fix on the EDM, then Tesla did pretty well on the up front engineering.

[@bhaebe6671]

That's just the different bill of processes, as stated in the vid, whatever that means....

[@wtmayhew]

@@bhaebe6671 I saw an over-looked situation like that on BMW where they had to remediate an apparently unanticipated lateral movement with an add-on. It will be cheaper if Tesla sources the part with flanges already on it from their supplier. It will take out the labor element of installing the bushings and band clamps as well as taking out the cost of the four extra parts. It is maybe 2 USD per vehicle, but that is 500,000 USD per year at the anticipated production rate.

[@RichardSalmore]

It appears that as the volume ramps up, production costs and supply chain costs should be reduced. The CT needs to be high-volume to achieve design purity. Give it 300-500K units in the next 2-3 years! Thanks, Jordy and Kev for the detz! Munro is the G.O.A.T.

[@markplott4820]

over 150k in 2023, and 250k in 2025.

[@270eman]

Yeah goodluck selling that many of these piles of shit

[@darbyelliott2890]

Great Job! Super excited for this series. Keep these teardowns coming 🤗

[@MunroLive]

Thank you! Will do!

[@pitu72ger]

My favorite team. Thx guys.

[@monomille1]

Flashback to when I removed the front subframe (including engine, gearbox, suspension, wheels) from my Austin Mini. Four chassis bolts and the body just lifted up and rolled back making major maintenance access amazingly easy. btw, PTC is Positive Temperature Coefficient meaning an electric resistance heater - usually not what you want for efficiency.

[@markplott4820]

TESLA are built Different , UNLIKE any car.

[@arthurmoore9488]

I believe the Smart ForTwo has this weird thing where the engine is supposed to drop half-way for maintenance. Neat, but unless you do that it can be a pain to work on. It's important to note that we prefer PTC heaters over plain resistance heaters for safety reasons. PTCs have a fixed temperature they heat to, and lower the current at or above that. So, they're much less likely to cause a fire. I was shocked to hear about the stalling motor part for TESLA. I had assumed they would just run the AC in reverse as a heat pump.

[@markplott4820]

@@arthurmoore9488 - the BEST repair , is NO repair in the First place - ELON.

[@aaronwilliams1249]

Generally, a PTC is not used, but in extremely cold weather, it can help a lot, get up to temperature fairly quickly, and create a lot of BTUs, which are helpful when you're trying to heat a battery pack. Tesla has been using motors instead of separate PTCs.

[@markplott4820]

@@aaronwilliams1249 - TESLA heats up fast in Cold weather w/ Departure mode , & pre -heat.

[@darylclifford]

What an informative rundown on the package!! Love the way they describe and explain much of the build and give concise details on their findings. Huge respect to these guys 👍

[@arthurvandamme718]

That new intro animation 👀🥵

[@EricP36]

I know right!

[@r.a.monigold9789]

Thank you for sharing!

[@MunroLive]

Thanks for watching.

[@stevenpaul6529]

Nice thanks. Can't wait to get mine...

[@motorv8N]

Fascinating segment - thanks guys

[@MrBadgas]

Good stuff guys

[@MunroLive]

Thanks

[@AdamEdward]

jordan does a great job of talking and explaining what he is showing around various parts of the vehicle. i would definitely keep him in doing these walk arounds. easy to understand and gets right to the point. and not having the "hey boys and girls" intro was fantastic. sandy has to drop that lol

[@MunroLive]

Jordan has been doing videos for us for years!

[@budgetaudiophilelife-long5461]

🤗 THANKS MUNRO TEAM,FOR SHARING THIS 🥶📐📐📐

[@MunroLive]

Our pleasure!

[@profsteve7653]

excellent presentation-really appreciate the analysis- the rear assembly is a beast

[@alanmay7929]

its not

[@profsteve7653]

@@alanmay7929 i suppose it satisfied my curiosity but I'm not an engineer only a spectator to the Tesla innovations

[@markplott4820]

NO ONE ON EARTH builds Trucks like TESLA does. probably NEVER will either.

[@davidanalyst671]

you are right, it is a beast. and the presentation is good. They give an overview, and then cover all the points they think of when looking at the piece in front of them.

[@rogerstarkey5390]

Essentially a great description 😉

[@RagnarinVa]

I love the videos on this channel - the knowledge presented is outstanding and I actually learn a lot. Well done to the Munro team.

[@alimechs]

Good update keep it up the good work 👍👍

[@MunroLive]

Thanks 👍

[@bobmurray3229]

I love that you feature solid American manufacturing companies. I will always buy American first 🇺🇸

[@johnpublicprofile6261]

BRILLIANT

[@tnez2009]

Excellent!! 👍

[@EricP36]

Love the intro and the music! Keep them coming!!! 😉

[@MunroLive]

Thanks! 🎸🤘🏼

[@DericO-rz3be]

Good Dudes on this one!

[@kevhuynh27]

Thanks!

[@MunroLive]

Thanks!

[@qpn6ph9q]

Awesome

[@rbfarrell1]

Great video as usual. Very interesting.

[@ronkuhlmeier6414]

Looking at the packaging, this reminded me of the Oldsmobile "Unitized Power Pack" that first appeared in the 1966 Olds Tornado and was later used in the famous (or infamous to the EPA) GMC Motorhome. The UPP took a V8 and mated it to a torque converter and chain assembly taking the rotational power of the longitudinally mounted engine and making it do a "U-Turn" to power the front wheels. (kinda like the front half of a 4x4 setup) Why did they do this? It aided in the assembly process having the drive unit packaged as all one "unit." I'm curious if any of the classic car folks in here made the same connection.

[@andrewashmore8000]

interesting info.

[@TidleyWink64]

Jaguars XJ series has this and they’re a nightmare to service.. can’t imagine having to tell a customer they need a new plastic coolant elbow on this. That’ll be $50 for the elbow aaaaand $5000 in labor to replace it… and oh btw warranty is void unless you take it to Tesla and wait 3 months to get it in the shop 😂😂😂

[@barneyjensen4470]

I enjoy the commercials or ads, I'm not aware of a lot of these things so it's fascinating.

[@shawnconti8915]

Indeed!

[@Chas_Reno]

Great Job!

[@MunroLive]

Thanks!

[@feedvid]

Excellent video!

[@MunroLive]

Glad you liked it!

[@bob15479]

LET'S GOOOOOO

[@ChaimLoecher]

Great observations ... Wow that is a huge drive unit

[@markplott4820]

Tesla (tm) MEGA CRADLE .

[@css145hs]

Huge air struts

[@davidanalyst671]

Well.... the air will travel 12 inches, its the cyberbeast not a cybertruck lolz, so it contains two motors, and it has the gearing to put both motors to drive both wheels, so yes, it is huge, but considering what it does, its expected. This system and the front one accelerate this truck 0-60 in lilke 2.6 seconds. so you're comparing this to a w16 motor from bugatti super sport when you think about how big it is.

[@markplott4820]

@@davidanalyst671 - would have been better w/ Semi transmission tri motor & driveshaft disconnect. more efficient.

[@saff226]

​@@markplott4820they are induction motors so can be turned off without drag so really no different to the semi just less parts and more reliable

[@DougWedel-wj2jl]

Imagine the truck’s box having a bed 18 inches lower than it is now WITHOUT CHANGING THE LOOK FROM THE SIDE. Without sacrificing clearance under the vehicle. The bed on pickup trucks has always been a big step up because you had to accommodate the axle and differential, which was always the height as the centre of the wheels. The only way to lower the bed height is use smaller diameter wheels. Electric trucks don’t have the same restrictions. The trick would be to nest everything into the walls on the sides of the box. That is absolutely possible. It does mean rethinking how to arrange the parts, but it really can be done.

[@ExploringCabinsandMines]

The lower A arm is a dirt collector.

[@mrm1885]

Designed for California not the rust belt :)

[@wtmayhew]

It is too bad that for whatever reason that the A arms aren’t aluminum castings. I was thinking the same thing. Being stamped and welded, even if it is powdered coated, that’s an invitation for corrosion. I live in a region who uses winter road chemicals, so I tend to notice such things.

[@celeron55]

@@wtmayhew Well, you'll probably be able to get cast or forged aftermarket ones, given the production numbers Tesla is aiming at. Of course, won't be as cheap.

[@ExploringCabinsandMines]

I still want a CT

[@user-yl9sw4ed2f]

Drill some holes.😅

[@bubpori5105]

A-Arms Stud Down Nut up Later Version Done Right ! Nice Duel Motored 3rd Member Heat Sinks, Rotor Guide Bolt for Flush Mounting to Hub Can Cock with Wheel Installation Leaving lug Loose or Rim Hub Crimp to one Side !.

[@supernumex]

Can you guys look into uploading in 2:1 aspect ratio? I think it will improve the viewing experience!

[@jamestreanor182]

Quality can be seen ❤❤❤ would love to see the upper and lower arms in castings too

[@1944chevytruck]

Surprised to see the amount of dirt build up in parts of the Chassis suspension.

[@WiseWik]

You have to drop the subframe to do upper control arm bushings 😂 Truly a visionary product

[@brianb-p6586]

That's bad, but there are cars which require removing the engine to change spark plugs. Some mechanical operations on pickup trucks require removing the cab.

[@maxflight777]

@WiseWik 🤡

[@WiseWik]

@@brianb-p6586 on 911s that's normal. You expect that from a luxury sport car. With this thing, supposedly an off-road capable vehicle, better not put that wheel at a wrong angle.

[@davidelliott5843]

Steel under frames are notorious for corrosion. Out of sight out of mind. That steel control arm looks ripe for hidden and festering rust. It really should (at least) be wax dipped to seal all the rust traps.

[@markplott4820]

the Entire underbody is e-Coated as are the Gigacastings. the upper arm can be Upgraded by Unplugged.

[@stonergirls9806]

Dirt is going to collect on that bottom A arm. I’m surprised there’s no water drain hole

[@AudiTTQuattro2003]

...costs a nickel to add.

[@tesla_tap]

With the vibration it may splash/fly out so quickly and dry so that a drain is not needed (and a hole adds a possible point of corrosion).

[@YourArmsGone]

@@tesla_tap Doubtful, mud sticks and builds up any place it can.

[@capslock9031]

Kevin "Itself" Harty on it again! Great presentation, guys. Love it! (Don't do shots though, you'll be drunk in no time.)

[@MunroLive]

Kevin is great!

[@EricP36]

To late. 🥃

[@shinjincai]

Hoping to see Sandy show his face at some point! Keep up the good work!

[@MunroLive]

He’s all over the channel!

[@EricP36]

Who’s Sandy?

[@MunroLive]

🤣😂

[@Constant_Distant_Instant]

I thought they're using silicon-carbide MOSFETs on the cybertruck instead of IGBTs...

[@felixweinreich3999]

100% my thought

[@bohicajohnson7203]

Those reinforcing parts on the giga casting look very organic. I've seen similar, in science fiction!

[@tuffitout2568]

Cool...

[@M13x13M]

Did they ever find the Exoskeleton?

[@brianb-p6586]

LOL No, it doesn't have one, any more than any other unibody vehicle.

[@M13x13M]

@@brianb-p6586 Can you manage being the engineer that had to tell Elon that they would have to scrape the exoskeleton if they ever wanted to get the truck into production.

[@concinnus]

Single-caliper pistons seem underspec for a heavy truck. Regen might get you 0.4g of braking normally (and probably less on the base trim), but that will go down when towing.

[@obfuscator]

Great analysis. 14:40 😂

[@antoniopalmero4063]

Just like a big tamiya rc car .

[@TeslaElonSpaceXFan]

❤❤

[@chrisss73841]

For $100k they could at least put some anti-seize on the tie rod threads! Aluminum may not rust but the threads will seize anywhere that uses road treatments in winter.

[@davidanalyst671]

before RONA, the NHTSA made tesla do a recall on one of their model X i think because there was a cable to release some seat mechanism, and Tesla did not put any oil on the cable. Its the little things that get you.

[@nihongobenkyoshimasu3190]

13:47 Saving the cost and the weight of a single 3/8 bolt !!! I remember Sandy talking about good enginering pactice of saving 1 gramme a day. But other Tesla vehicles still have this holding bolt. I wonder in fact when you try to disassemble the brake to changes the pads, if you don't need then to have the bolt?

[@zilogfan]

Why would you change the pads? I have 120000 miles and they are 3/4 or more of new.

[@yuricorrea2491]

With megacast's ribs and structural "ribs"(I don't know what they're called), feels like vehicle structural parts are more and more organic.

[@4literv6]

Bio mimicry or bio mimetic design at its finest. 👍🏻

[@markplott4820]

GIGACAST parts are very Organic. the IMPRESSIVE front end was created on the OLDER 6600 Ton press. the Rear uses the 9000 Ton press.

[@davidanalyst671]

Sandy Munro did a segment on the giga castings. That was one of his comments that instead of a car frame, it looks like it was designed by nature

[@erkkavilhunen7852]

Having seen crash test video when it first came out it was interesting to now see rear suspension design in detail. Based on how rear wheel moved in that crash it is hard to see how that movement could come from those suspension arms without something in them having broken in the crash. And failure happened simply because of rear wheel and suspension weight. Front end crash only provided sudden stop. Not the actual failure at opposite end of the structure.

[@briancnc]

Is the threaded hole on the rotor not just a spot for a jacking bolt? Most cars have 2 for removal when it's stuck on.

[@nononsenseBennett]

Don't like how the lower control arm is bowl-shaped which will collect mud/moisture....Also wondering how much the struts cost?

[@AudiTTQuattro2003]

...if you need to ask, it probably isn't the vehicle for you. Small volume, vehicle specific, computer controlled... Cha-ching.

[@MrTeff999]

@@AudiTTQuattro2003 …such has been the case for so many new cars.

[@user-ri5pj3iq9l]

Anybody on here see potential for corrosion, etc problems with lower a-arm debris catcher?

[@ohlordy2042]

It would be really interesting, particularly for us vehicle engineering novices, to do side by side comparisons with "competitor" vehicles. e.g. Rivian or Ford equivalents. It would also be interesting to get overall impressions of execution (how good or bad the system is) compared to competitors.

[@canoogansfusionfoodsalts]

🌈🌎🐉 Fr Canoogan says heya to the 🌈🌎🐉Big Man on the tools...cool to see him work, along with the 🎶

[@rcjbvermilion]

Those threaded holes on the brake rotor may also be for removing stuck on rotors. By threading a bolt into the hole, it can break a stuck rotor loose.

[@sagarmeena0210]

Amazing explanation guys.......keep tearing apart Tesla's

[@MichaelGreenLagos]

I wonder if each motor drives a single wheel for 4wheel drive because I saw a video of a cybertruck which had a problem with it there was a roomier going round it needed a software up date does anybody know if it work yet

[@artemZinn]

Love it as usual, folks! Please cover the diff lock as you get to it! It appears that dual motor Cybertruck with electro-mechanical diff locks will be better for off roading as no one including Tesla and Rivian figured out the proper implementation of virtual software lockers?

[@cronix1]

this video could really do with some crisp disassembly visuals as cut scenes so we can follow better where in the vehicle all these important insights you raise, are located. Still enjoy your stuff overall, just providing valuable feedback. Keep it up team.

[@CyberTankMan]

👍

[@Billscienceguy]

Control arm pivot points have no affect on the half shafts. The wheel position (up/down) is the only thing affecting the half shaft angles and that has to be the same no matter where the control arms are connected. That being said, yes the half shafts are pretty long. Some of the longest IRS control arms I've seen belong to the Taurus wagon.

[@TyPope]

How much steering angle is possible compared to how much the software allows at the moment? You are in a great position to see.

[@freddymax5256]

Saving grams of weight by drilling plugs out of the brake rotor but there are multiple places where lbs. of dust, mud, ice etc. will accumulate.

[@bernesto2468]

Without opening it up it may be Silicon Carbide (SiC) MOSFETS instead of the IGBTs mentioned in the audio. Granted in some dual motor systems they some OEMS use IGBT for the motors that are used infrequently in this case it would be the front drive unit for cost savings

[@felixweinreich3999]

exactly what I thought - how? IGBT for 800V are not common and SiC MOSFET (Hyundai, Porsche -> Vitesco and others) enable lower switching losses, smaller form factor and higher efficiency overall due to higher switching frequencies possible for motor controller. By cutting the inverter DC side currents in half I don't see the need for IGBTs with 800V architecture.

[@rolandoq]

You guys use the noise cancellation in AirPods Pro as PPE?

[@peteregan3862]

All that cooling and inverters that there says the charging plug, battery inverter, and motor inverters are better off up front. Then a much smaller cooling system can be used for the motors and special covers are not needed for the inverter - can just run the power cables directly into the motor from the upfront inverters

[@bob15479]

You hired the Car Wizard! 🤣

[@MunroLive]

?

[@bob15479]

@@MunroLive the gentleman doing disassembly in the opening shots just looks kinda like the Car Wizard from Hoovie's Garage.

[@V10PDTDI]

I really like when sandy is not involved in the video he is too much Tesla fan boy . I would like to know if the truck is hit in the middle of the rear wheel and the aluminum casting is broken where the upper control arms are bolted is there a way to repair this this can happen when sliding and hitting a curb from the side ?

[@AudiTTQuattro2003]

Given their discussion and the way it looks, Tesla went full "not our concern" on repairability. So much for being different from other manufacturers.

[@brianb-p6586]

With the upper control arms located directly on the vehicle structure - not on the cradle - the cradle can't be vibration isolated; the cradle must be solidly bolted to the vehicle structure.

[@rcarhouse]

👍👍👍👍

[@joeennis2571]

the threaded hole on the brake disc is there to assist in removing it when it needs to be changed .

[@tacosdecamaron]

Isnt it cheaper in terms of complexitu and scale to create both front and back suspensions/ cradles the same? That would also help reduce the extremeangles required on the front. Also mayne potentially have a quad motor config

[@omnicurious2949]

I am surprised to hear about IGBT. I thought Tesla uses Silicon Carbide based inverters. Did 'Munro Live' make a mistake here?

[@trampfossil]

Could the drum bolt threaded hole actually be a receptical for a robotic control arm bolt.??