How We Built The Ultimate Rock Bouncer Havoc Racing Truck

Download Rise of Kingdoms for free: patron.me/GrindHardROK and you will get a huge bonus with code ROKVIKINGS This is Grey's Havoc Racing truck and it is insane! Powered by a 496 V8 boat engine!
Join the event here bit.ly/ROKGiveaway_Grind and you will have a chance to win iphone12!
We will be attending the next Mountain Mafia event in Bonners Ferry Idaho June 11-13 / mountainmafiaentertain... we will bring our power wheels builds and more! Come say hi at our booth and watch these ultra rock bouncers tear up the landscape! Gray's rock crawler is a seriously impressive 4x4 and an extreme off road beast! This ultra rock bouncer should be unstoppable at the next havoc racing event.
Support us by getting our exclusive merch here: www.grindhardplumbingco.com/
You can find all of our tools here: www.grindhardplumbingco.com/b...
Fan mail
PO Box 2370
Sandpoint, ID 83864
USA
grindhardyewww[AT]gmail.com
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[@GrindHardPlumbingCo]

Download Rise of Kingdoms for free: patron.me/GrindHardROK Join the event here bit.ly/ROKGiveaway_Grind and you will have a chance to win iphone12!

[@joesnows7322]

Do you guys ever put these out in shows or anything for people to take a look at?? I'm local and I would love to take a look at some of the stuff you have they're awesome!!!!!

[@mweaver3757]

What music do you guys use?

[@GrindHardPlumbingCo]

@@joesnows7322 We will be at the next mountain Havoc event!

[@josbtheonlinebartender2002]

Ask them if is ok if we can teleport on it.... 👽 with conclusion ▶️ my pass The Parking lot is waiting 🅿️

[@Idocoke1738]

Good work guys

[@SirSpinalColumn]

Alternate title: "How our buddies build the ultimate rock bouncer havoc racing truck" cmon grind hard, you're better than that.

[@southerntiessxs1515]

I was thinking the same thing

[@michaeldenton8610]

Exactly

[@bruce0735]

Maybe its just a typo...

[@SirSpinalColumn]

@@bruce0735 yes a perfectly capitalised typo

[@Perception_]

Yup, claiming credit on behalf of someone else is something you never do.

[@Fix_It_Again_Tony]

MRAP axles with planetary hub reduction? Sounds bomb proof.

[@jeremyhanna3852]

I bet grind hard can break it

[@miguellloret9773]

Veeery underrated comment XD

[@painkey1189]

Sounds like two pedals

[@tananam9782]

Where can I get two? Seems... recherché. Ain't I fru-fru!? When I own an unimog, mayhbe I'oll buy a set, .... if they're better than than the first.

[@flatlinedatredline]

That's because they are

[@dmtcall]

this guy knows how to dumb things down without making it feel that way!

[@Bootysmoothie]

Just like any good schoolteacher with some compassion thank god he exists lol

[@bradleyj.fortner2203]

Ethan: How can I turn an old fire truck into one of these?

[@corporalclegg914]

you’re a Mind-Reader, Fortner. though, I believe they still plan to turn her into a toy hauler. either way, I don’t see any-type project outside of any realm, for the GHPC boys. the ole Fire Truck has sat idly by, but I wouldn’t be surprised if they’ve been amassing parts for her since the introduction. I always look for her in the vids shot on property. she needs a bath & some love

[@Darwindiggler]

$$$$$

[@wheels.and.wrenches]

You can't

[@JS-zb1vv]

There is a guy on KZbin that lifted a fire truck and put 53 inch tires on it . It’s black looks cool .

[@rectly]

@@wheels.and.wrenches with money you can do anything

[@TimZ007]

When you see the headlights and grill it kind of looks like a riding lawn mower LOL.

[@killercanary95GT]

They looks like RZR headlights.

[@zednicholson3688]

Beefy mower

[@ricerneon399]

@@killercanary95GT what I was thinking

[@bisket2003]

You take ALL the notes Ethan??? I foresee you guys making a future build. and getting into the NRRA!!! DO IT! Use that old firetruck as your tow pig.

[@definitelynotpewdiepie]

For a moment I thought YOU GUYS built it. Might want to fix that title. Cool video though. I'd love to see something like that roll around the GHPC race track someday.

[@zvonimirkrajina2211]

My thoughts exactly!

[@christhut8140]

Ya, just a tad click baity.

[@jeepcherokenumber1juansalv158]

Dude grow up already u sound like my 15 year old niece I watch grind hard plumbing not cause it’s said that they-build it and they explain the build I don’t care who made it or anything I’m into this because everything they build and do I think they deserve to say whatever they wanna say cause their making their videos not your videos so keep your opinion to your self I think it’s a great title guys keep up the great work

[@SirSpinalColumn]

@@jeepcherokenumber1juansalv158 wow, you need to go back to school.

[@eriklarson9137]

@@jeepcherokenumber1juansalv158 Not a coherent thought anywhere in there. Annnd ignored.

[@tapthis55]

Please look at Tim Cameron's build. And study, learn, then create the ultimate Machine ! Ethen you have the ability! I have faith in you!

[@mullynoglets]

Srss guys have come here and competed and didn't do so well. Calling these rigs rock bouncers isn't accurate. They are way bigger, stronger and heavier. That's why ben spinney calls them havoc rigs.

[@seantap1415]

@@mullynoglets Ya they are both awesome at different things.

[@scotthamby207]

Timmy the top dog down here in the south

[@mullynoglets]

@@scotthamby207 no doubt timmy's the man. Havoc style racing is a totally different animal though. There are lots of people trying to get him to north Idaho to compete. Havoc racers have been and are going to srrs races and he is interested from what i understand.

[@coopdoesit7442]

@@mullynoglets Timmy honestly doesn't like mud or rock he tends to better on tracks that are 80% dirt ! That's what he told me when i asked him why he struggles at AOP Adventure off-road park! He has only won 3 or 4 races since they started having events there. Look the place up it's one big rock garden but yes he is the man an one of the coolest laidback guys you could talk to!

[@NVMDSTEvil]

Thought you guys had beat me to building one. Guess I still have breathing room. Got my tube chassis, axles, motor, transfer case.. just need a transmission, rims, tires, seats, shocks, and some engineering to make it all fit together.

[@2proatv269]

They should totally get those tires scooped and grooved. Lug would be insane

[@dparrott8952]

MRAP= Mine Resistant Ambush Protected

[@bmxshippy]

Was gonna point out the same thing 🤦‍♂️

[@eriklarson9137]

Whew. That was a brain buster for sure. Glad you Googled it for everyone.

[@squidsolo3209]

I actually knew this acronym without googling it. But definitely knew these guys have something way better than my drunk service with the marines. So me knowing that wasn’t worth commenting on, because the work they put into making the vehicle and creating a great video

[@halvardtrud1229]

Your videos are so fun and helping when im stuck inside with my hurt leg.

[@tstricklin4808]

First covid and now your leg!?DAMMIT😜😂✌🖖

[@halvardtrud1229]

I played football. That damn sport.

[@halvardtrud1229]

@@merlincultofficial3235 yeah i will.

[@jonnyringo6338]

That’s awesome and all but honestly what’s more fun, this or colonel senders

[@ericksegovia4662]

Grind Hard, I am so glad you explained the mechanics of that rock crawler. It's one thing to see it and another to know what every piece of the build does. That is why I love your builds- you explain everything very well.

[@wheels.and.wrenches]

He didn't explain any mechanics. He talked about the axle tech portals slightly. That's not the mechanics of a rock bouncer. That's one tiny tiny fraction of one part of a rock bouncer

[@ericksegovia4662]

@@wheels.and.wrenches Yeah, that's what i like. Very informative for me, thanks Grind Hard.

[@davidprice9135]

Super show, love it. Edwin, your videogrophy is gaining by leaps and bounds. However, you HAVE MAD SKILLS with that drone.

[@fredkennedy8435]

This vehicle is SCARY! Holy cow. Looks so fun!

[@ScoobieSwisher7413]

Bring it down here to King Of The Hammers next year, compete in the Shootout.

[@wheels.and.wrenches]

But you didn't build it? So confusing...

[@interessiertesalzgurke404]

So you guys just went to an offroad park, saw these guys and this crawler and asked them to make a video about it? Sick xD

[@FarmerFpv]

I would have done the same thing, lol.

[@Jcewazhere]

Would love to see more electric rock hoppers. Stick a motor inside each tire to get insane control and torque. The batteries would help lower the CoG to keep the thing stable, especially if you mounted them in a moving cradle.

[@westellmodel]

They're just not good for prolonged use

[@Jcewazhere]

@@westellmodel Didn't the guy specifically say they don't have to worry about the gear based brakes getting too hot because they don't run for long? A 60kWh battery is 216mj, or about 2 gallons of gas. Doesn't sound like a lot till you remember that a V8 like the one they're using is ~20% efficient while electric motors are better than ~80% efficient. So you can get about 8 gallons of gas equivalent out of just a 60kWh battery. How big are the gas tanks in these things? A 60kWh pack weighs about 450kg. A big V8 plus transmission can weight just as much if not more. Plus you could cut out the driveshaft, gears, differentials, pumps, and many other parts and just plug the electric motors straight into those planetary gears in the wheels.

[@GENcELL2014]

Literally watching what the future builds of Grind Hard could be...and I'm looking forward to it!

[@django2467]

Build a custom toyota based rock bouncer would love to see your twist on it

[@GrindHardPlumbingCo]

That would be killer

[@django2467]

@@GrindHardPlumbingCo Make it happen cheers from Barbados 🇧🇧🇧🇧🇧🇧

[@craigengelman4534]

@Grind Hard Plumbing Co i need to post mine . alum tube chassis with yota axles ,trans and transfer case with a artic cat 900cc thunder cat motor . 4 link front and watts link rear . 36 inch tires sanded smooth with scat - trac ripper paddles . all in its 1500 lbs . looks just like this but mines green kzbin.info/www/bejne/o4XCiKCHp8l3gqs

[@TheRedMenaceR]

Came here for the comment correcting the MRAP acronym, Mine Resistant Ambush Protected

[@Nathan_King]

And if they think that's bad, there is a M-ATV, which is MRAP All Terrain Vehicle. Yes, they literally use acronyms to make more acronyms.

[@pswanberg1]

Even then, what's not to understand? Its a mine resistant vehicle...?

[@adamwatson4286]

I was coming to do the same thing😂

[@ForesterDaddy]

Thank you theredmenace I had a light case of a tick when I heard the their acronym.

[@davidjohnson2639]

Wicked cool I Invision a power wheels version coming soon

[@danielb6472]

M.R.A.P.=Mine Resistant Ambush Protected. The tldr is that it will deflect an undercarriage blast to the point of falling apart to save the occupants. It will also stop small arms and explosives, but without additional equipment it probably won't protect against a direct hit with anything designed to penetrate armor, such as an RPG or EFP.

[@visceral6078]

You know the entire time he was around this truck he was taking mental notes. No way they aren't going to build one someday

[@MiceliCreations]

This is what makes America great. Ingenuity and Horsepower. Happy 4th of July!

[@silenteyes-rp6ij]

I randomly bought a sic (but affordable), danchee Ridgerock rc crawler over lockdown. And ended up modifying & upgrading to look very similar to this beast( but 1/10 scale). After watching this vid, & seeing you guys just ripping around in one for real, is nuts! Now iv gotta take it out with a new perspective. thanks guys!

[@mikeakins4726]

So is Grind Hard PC going to build one? thats the question :)

[@fredio54]

After click bait like that, it's mandatory for redemption. How WE build. Nope, how my grade school buddy and his friends built.

[@nmoran2046]

Yeah but it’s going to be a power wheels version

[@fredio54]

@@nmoran2046 Nah, should be a full size one, they already have the power wheels versions times 10, time to step things up a notch.

[@jamesdavid5997]

That's what I thought this was

[@mariusbachmann8316]

I'd love to build one of these 🥺😱

[@edwardfletcher7790]

The Engineering of these things is AMAZING ! MRAP Axles are crazy strong as the vehicle weighs up to 18 tonnes !

[@mikesnyder6358]

Could anyone else hear the gears grinding in Ethan's head during the build breakdown? Pretty sure I saw a little puff of smoke shoot out of his ears. Lord help us, the future Grind Hard builds are gonna be even sicker!

[@anthonyestevez118]

Incredible machine. Thanks for sharing!

[@erinyorke6774]

The torque twist is insane

[@Pencilneckgeek216]

MRAP Stands for Mine Resistant Ambush Protected.

[@krzysiekzdrojewski6865]

This is just so stupid unnecessary and overkill... I fricking love it!!! 🔥🔥🔥

[@DB.KOOPER]

It looks like a life-size RC car.

[@TastierBackInThe80s]

Im like a kitten with a ball of yarn. Just finished watching Edd China and the electric ice cream van/Cadillac ep, and now GHPc with fire breathing rock bouncer. And now notification for F1 content shows up. That's a yes from me!

[@zvonimirkrajina2211]

What F1 content? I got two 🙂

[@wirebrush]

That just gave me the the final push to make it out to one of the races. I've been so tempted for so long.

[@TJackSurvival]

MRAP, is Mine Resitant, Ambush Protetant Vehicle. Great video guys!

[@LowGearMedia]

I noticed the HAVOC tee-shirt in the previous video and was wondering the connection. This is so rad! We BC Canada Snow Wheelers are coming back once we can cross the border. A few new builds so keep an eye out.

[@DirtRoadBoyz2]

Dope beats, dope video, badass rig. All just 🔥

[@pamike4873]

Maybe you can pack a bit more cringe into your comment? Dats dope man.

[@rickmarquart3277]

I can't even think about 56" tires! 💪🏼💪🏼💪🏼👍🏻🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸

[@POGAH44]

That thing looks insane to drive. Such a bad ass build!

[@theirishaxe9405]

Ahhh selectable lockers on a reduction LOVE IT ! Would love to get a double radiator in one of these and just mountain ride it for a day ride.

[@tracytillett]

You guys are my heroes... Seriously I'm in love with y'all

[@bdubz5150]

Sick machine!, looks nearly break proof.

[@jlucasound]

The shots the drone gets are unobtainium any other way. You are getting so good, Ed.

[@michaelk5503]

Thanks for the video! I finally got a good look at rear steering. Creepy!

[@EpicFilmshub]

Whistlindeisel Should get one of these..!

[@jlucasound]

You Guys are Awesome! Have a Great Memorial Day Weekend, GHPC and Everyone!

[@keltonfoster]

It's about time you got into the bad ass off road club. Crawling and bouncing your way to the rocky top.

[@tigattac]

Hmm, are you going full scale now, boyzz? Anyways, good luck whatever comes next. I will watch your awesome builds, you got skills.

[@TrulyUnfortunate]

Mine Resistant Ambush Protected.

[@jaydangier1110]

I saw this going through bonners ferry a couple days ago It was the collest thing I’ve ever seen

[@steveoehler6006]

Love it. hook switches up to the Air Struts/shocks slam or raise it!!! Oh Yeah

[@barefootjer]

See you there!!

[@stevenjennings8347]

Awesome informational educational video experience Y'alls God Bless Ya 🙏

[@braxtenwells3008]

Heck yeah, I hope I see you guys up there👍

[@MJorgy5]

These machines are terrifyingly cool.

[@ToadHoleOntario]

Love the build, I would have built up some Rockwell’s with outer planetary conversion to keep drive line as high as possible. Ties need to be cut!!!!

[@Hamzamakesfunvideos]

WOW Real Life rock bouncer!!! There is also an rc rock bouncer. You should compare their sizes XD

[@pyrotest3]

Wow🤯. This is insane broo💣

[@bobthefish9327]

This was posted on my last day of school😁

[@PascalVos]

plz make one like this :) would make a good series!!!

[@sandhillsoilburnercrd9151]

Wow Really Nice Rig. Very similar to our rig minus Axeltec,,,,AWESOME!

[@scotthaggard1381]

The articulation is awesome

[@raymonddyck7832]

Man, I love it u should get one of these

[@davewall2184]

The creators of mad max are likely jealous of that machine and can't blame them AWESOME!!

[@AhnkoCheeOutdoors]

Mad Max to the max! I wonder how these would do at Moab. You want to build one now don't you.

[@Bakuah1]

this is one of the best things i ever see

[@mullynoglets]

Awesome! Can't wait to meet you guys. I was gonna message you guys to see if i could come check out some stuff since I'm going to be there for havoc. Now i don't need to. Ine stop shipping.

[@SchneiderClassics]

looks like an rc car climbing and driving over rocks haha, love this build

[@engineeringtehmetals]

That thing sounds amazing!

[@samlabossiere5093]

Love the new wheels on the sur ron

[@taylorwatterson]

My first thought was How the F%$k did they get that🤯🤯

[@VolV8]

Impressive bit of engineering. I'd like to see one electric powered, clambering silently (relatively) over giant obstacles. It'd be frightening 😲

[@siggyincr7447]

You can do some really cool things with torque vectoring when each wheel has it's own high torque electric motor. I'm kind of surprised that that hasn't become the norm yet.

[@fladave99]

Rock says "Oh no, get that thing off me"

[@josbtheonlinebartender2002]

Groceries... You are welcome!

[@eyesac7486]

i am very misled by the title, can someone explain what they meant by “how we build a rock climber” and then use a thumb nail acting like it’s been some bts build 😂

[@aydencooper6244]

that truck is so crazy

[@owenscinta1032]

Really nice to see the boys scale up their projects and exhibit thier skill

[@stevenmark8156]

Lol. You obviously did not watch the video did you?

[@Yokaylob]

Speaking of Rock crawler.. was kinda hoping to see yall at the" north Idaho mud crawl". that havoc is sick

[@somekiwidude]

that build looks solid looks like it actually wont break stuff

[@csorrows]

Grind Hard, I know this is an older video but now that you are going to build a larger shop, is there a chance you will be building a havoc racer? I think a build series with your own spin on one would be an amazing series to watch!

[@baynmods]

you guys have to build one!!!!!!!

[@codyswilley]

LOOKS AWESOME

[@joshhamby294]

Busted knuckle films the buggy's are fast

[@lokishangout4286]

Well I didn't expect this video but I'm not complaining.

[@SharonD369]

I would call that a Rock Crawler, Rock Bouncers or Rock Rods get sent at max speed.

[@Yokaylob]

Yo im super stoked all be at the havoc event.. can't wait to meet the boys

[@Skiridr22]

That look like something out of MadMax 😳

[@steffentysnes5302]

Would be a pretty awesome long term project

[@chucktaylor4958]

Love the tires attached to the bouncer.

[@duramaxdad]

Look like backhoe tires. Yeah

[@chrisk7984]

That thing is a BEAST

[@FreeMovies647]

I thought I am in Virtual world!! Who are you guys?? 🤪🤪👍👍what a monster

[@ramonsanchez1809]

Tremenda vestía parda

[@agustingonzalez9934]

You guys should build the firefighter truck for the event. For towing all the builds. It would be awesome

[@embeaston]

Makes me want to bash my RC seeing that thing. Looks like the Lasernut!