How to Build a Custom Driveshaft - Rock Rods Tech

[@BustedKnuckleVideo]

Check out the new shop channel for more Tech Videos! kzbin.info/door/bOUUPmH1YoFXHRQuZarA5A

[@BigfootTJ]

This channel is a hidden gem 💎

[@BustedKnuckleVideo]

Thanks!

[@a-train4854]

I was so stoked to build a diy drive shaft for my daily prerunner! You crushed my fab spirit at the end 😂 all I do is 80mph everywhere 😂

[@BustedKnuckleVideo]

you can build it and have it balanced

[@bustedknuckleoffroadllc5060]

Guys run “trued” shafts in ultra 4 all the time with speeds around 100mph. Their tires are beadlocks that are not balanced. Some with solid mounted driveshafts. The point is, if your tires are bouncing or your not running on a smooth surface , there is no reason to balance the shaft. True it up and let er eat!

[@garymaddux2000]

Hey! I was there when y'all were filming this lol. Thanks for those heim joints and .120 dom tubing

[@BustedKnuckleVideo]

Thanks for stopping by!

[@jeffyoung2089]

Thanks Jake!!

[@BustedKnuckleVideo]

He knows his stuff

[@bustedknuckleoffroadllc5060]

Your welcome jeff

[@GodBlessedAmerica]

Measure twice cut once. Lol Dodge needs to beef up the driveshafts on their Hell Cats to something stocky like these. There’s videos of them dumping driveshafts everywhere. They really did their homework. 🤦🏼‍♂️ Thanks for sharing guys. 🇺🇸

[@BustedKnuckleVideo]

Really? I wasn't aware of that. I guess 700hp is tough on them

[@GodBlessedAmerica]

BustedKnuckleVideo

[@GodBlessedAmerica]

BustedKnuckleVideo < Check it out. One of many. kzbin.info/www/bejne/r4vImoSKZd53oJI

[@koreyliles5309]

Log awaited this video from you well done ! Thank for your knowledge

[@BustedKnuckleVideo]

Thanks for tuning in!

[@fernandovalenzuela509]

Excelente trabajó 💪🏻💪🏻saludos desde Chile 🇨🇱

[@peterbuilttough3406]

Great info Thanks! Absolutely love the smell of argon gas! just thought I would share that.

[@BustedKnuckleVideo]

gotta love that welding sound and smell

[@dosbox907]

awesome vid, learned a few things, im gonna have to extend my dentside bronco driveshaft pretty damn soon and I wouldve fucked up the welds for sure without this vid.

[@BustedKnuckleVideo]

glad to help!

[@wannago2moab]

Vibrates at 70mph? Does it smooth out at 80? Haha! I built a schedule 80 1410 driveshaft and it was a complete miracle. No vibration at all and I beat on it for years! Thanks for the video.

[@BustedKnuckleVideo]

You could have the balanced, we just dont do that

[@wannago2moab]

Lol yeah the one you built in this video is way nicer than any driveshaft I’ve ever seen come out of an actual driveshaft shop. I’m sure it would balance out good.

[@BustedKnuckleVideo]

We might need to look into balancing them and sell some to jeep owners

[@wannago2moab]

Yeah those 3.8s are a powerhouse.

[@BustedKnuckleVideo]

I need an LS swap in my life

[@nmkzanime3966]

thank you nice skill

[@BustedKnuckleVideo]

Welcome 😊

[@douglass509]

What was the full bump length of that DL?

[@johncranfordpersonal4146]

Your videos sure are helpful

[@BustedKnuckleVideo]

Glad to hear that

[@snowmanak1]

those are some amazing tig welds, did have a question which you may have covered in an earlier video but im a new subscriber, when placing your trailing arms/transfer case, do you have the flange/yoke as close to center of the hing point or does it matter to much as long as it is not excessive?

[@BustedKnuckleVideo]

I'll check with Jake on that.

[@jamesmerritt4315]

Pretty slick guys

[@BustedKnuckleVideo]

HD

[@JayDee-bz2ge]

Awesome... Are you guys using 4130, or mild DOM? Remind people to "remove the u joints" before final welding

[@BustedKnuckleVideo]

DOM

[@oprextv]

wow, Amazing..... inspiring videos...!

[@BustedKnuckleVideo]

Glad you like them!

[@Ibex-]

Good information. How do they last getting bashed on the rocks?

[@BustedKnuckleVideo]

Everything has it's breaking point but so far no issues out of these. Zero Failures

[@wrench41m21]

I'm willing to bet if I put one of those on my balance machine it would need some weight, especially with the rpm you're running them at I'm surprised you're not having at least some vibration issues. props on the Spicer parts, I sell tons of the stuff

[@BustedKnuckleVideo]

No issues so far.

[@joykbazen3924]

Love the vids

[@BustedKnuckleVideo]

Thanks!

[@jamesmerritt4315]

Say you're right heavy duty for sure

[@BustedKnuckleVideo]

gotta be!

[@doughboy4x4]

OK just asking way didn't you balance the driveshaft?

[@BustedKnuckleVideo]

Most off road rigs don't need balancing. The fitment of these also makes for very little run out or need for balancing.

[@tobiastho9639]

These probably would look good under the yellow Jeep XJ from "Matt's Offroad Recovery"... ; ) Do you do sponsorships? xD

[@BustedKnuckleVideo]

These might be a little overkill for an XJ.

[@kylegohawks8604]

What welder do you tig with. They are not equal. It does sound fancy to say tig welded. But I tig with mine and it will probably break

[@BustedKnuckleVideo]

Nothing fancy

[@peterbuilttough3406]

Do you have a full axle build video?

[@BustedKnuckleVideo]

that is coming up next

[@waydejaynes1291]

Interesting 😀 What kind of angles are you guys working with?

[@BustedKnuckleVideo]

with custom built suspension the right way there isn't much rotation of the pinion of the axle so they don't get put in much of a bind. that being said these parts can take a lot of angle

[@samuelanselmo4159]

I mud dragged in the 80's... Never had any problems with ujoints..used nothing but spicer...

[@BustedKnuckleVideo]

Rock Bouncing requires a super strong driveshaft

[@dosbox907]

you aint putting a fuckton of shock to the joints like street drag racing or rock bouncing.

[@Dan-kb9dr]

I custom fabricate and balance driveshafts for light medium and heavy duty trucks and agricultural uses. If you have any questions feel free to ask

[@BustedKnuckleVideo]

we got it pretty much down

[@skeggjoldgunnr3167]

About balancing: You have a lathe. Spin it up, stick a soap stone near it, work it in until it rubs and makes a mark, put weights opposite the mark? Drill out mass from the center of the mark if on a meaty bit? No? I guess you would know better than I. I know this involves liability and risk in claiming "balanced". Would it help? Is there a better way? How does one balance a drive shaft? A special stress-proof or sch 80 seamless pipe that's internally machined and spec'ed? 4130? Now you've only managed to pique my curiosity on this dammit.

[@BustedKnuckleVideo]

There are machines that balance them, it's just not necessary for what we do.

Inherently or inevitably.

[@BustedKnuckleVideo]

yes

[@VintageVaughnVehiclces]

I can't find any videos about flex disc overriding By that I mean get longer bolts turn the shzft and defeat the flex coupler Do it's bolted direct and no longer stretches and wears ou I filled in the shzft hanger mount with urethane So it's sold I filled in the transmission Mount and motor mounts on w115 Diesel mercedes. It only has 68HP so who needs alot if flex.my research shows they make al, the mounts flex so it all rips apart in a crash. But it's 48 years old. Now. Thesedays it is a tank all the big cars are gone..all American cars had no flex couplings and drove just fine. I'm going to try the 3 .pager bolts and do without the flex disc. Have you ever done that turn the shaft and bolt the 3 holes only even keeping the old disc it's just direct now. With 3 empty holes changing the euro car to gm style .

[@BustedKnuckleVideo]

never heard of that setup

[@MrGuitarguyadam]

Where can I get a flange conversion for a 14 bolt ff rear end??

[@BustedKnuckleVideo]

We sell those too www.bustedknuckleoffroad.com

[@davidw5756]

Muito massa. Vários projetos de primeira 👊

[@cronkthecrunk]

Where's the link?

[@BustedKnuckleVideo]

link?

[@cronkthecrunk]

For the drive shaft kit

[@67dueceman]

Awesome stuff! I need to do a 2 piece drive shaft on the front of my jeep (np205/4l80e) do you have any recommendations on carrier bearings or want to do a video on them?

[@bustedknuckleoffroadllc5060]

67dueceman yes sir, go to bustedknuckleoffroad.com and click on the driveshaft parts tab

[@BustedKnuckleVideo]

what he said.

[@JonMagrini]

@jake burkey Any info/specs on that chassis?

[@BustedKnuckleVideo]

You can check out our production chassis at www.BustedKnuckleOffRoad.com

[@aarondimick7895]

Transfer case brakes! Please tell me your building transfer case brakes, I hope that disk I seen isn’t just a park brake, tell me more please...

[@BustedKnuckleVideo]

Tcase brakes for the win!

[@tommyguns14able]

Why did you measure at full droop,when you just built it collapsed anyway?

[@bustedknuckleoffroadllc5060]

tommyguns14able to make sure the driveshaft is long enough to handle the amount of shaft slip

[@BustedKnuckleVideo]

Don't want your driveshaft to pull out on you on the trails

[@tommyguns14able]

@@BustedKnuckleVideo cool story bro. All that bullshit talk about vibrations due to timing. I guarantee your shit has 20 thou runout all day.

[@tommyguns14able]

@@bustedknuckleoffroadllc5060 and if it didn't,then what?

[@bustedknuckleoffroadllc5060]

tommyguns14able TROLLING 😂🤣 find another place to be a douche.

[@SMTMOTORSPORT]

It’s A prop shaft not a drive shaft

[@BustedKnuckleVideo]

How do you figure that?

[@quartfeira]

11 minutes comercial.

[@BustedKnuckleVideo]

infomercial

[@maklarus]

or you can build one out of carbon fiber and forget most of that crap :D

[@BustedKnuckleVideo]

That would never last in a Rock Bouncer

[@koreyliles5309]

Lol let's build a flux capacitor to and put that on the boulders LOL

[@GodBlessedAmerica]

Maklarus Trinity