How to Build a Chain Drive Differential for the - Mini Baja Bug!! - Part 5

[@rcclassiccrawlers4368]

It amazes me how far you’ve come in the technical part of your builds in the last few years. And yes I’m sure the equipment helps a bunch but still, you’re the one that’s operating them. Great job!! 👍👏

[@mlsargent51]

Funny, I was just thinking the same thing, how far his machinist skills have come!

[@kossmonaut]

this guy deserves a fronius sponsorship, ive seen people with much less subs get set up with some amazing gear

[@spdy3926]

I'm a machinist by trade, and I have really enjoyed you incorporating the machine tools into recent builds. Great content. Those machine tools can make anything you can dream up 👍 (and I see you are learning this)

[@eriklarson9137]

It would be cool to see your works since you brought it up.

[@thomaspryor8202]

Diffs work with gear oil. A bung and a few cooling fins and you're golden.

[@TheCidiot]

That's the nicest looking chain drive diff I've ever seen anyone make.

[@garagevorallem5673]

100 лет такие делаем, как будто что-то новое придумал. Давно смотрю твои видео, но такой шляпы от тебя не ожидал

[@WildXNatur]

A trick I saw when welding Aluminum is to use a piece of ceramic tile between your main piece and your bench or vise. It keeps the heat from pulling to the steel.

[@EdwardMurray06]

That’s a sharp looking differential. You combined that open dif and chain drive perfectly. Are you sure it won’t hold oil? You could easily machine in o-ring grooves to the base plates. Grease may work good enough but I think oil would be much better. Either way it looks great. 👍

[@jakeminogue]

How is this limited slip?

[@AMetalWorks]

That's an "open diff" not limited slip. Limited slip has clutches in the diff that help turn botb tires at the same rate. When turning the clutches break free and let them spin at different rates. Turning brakes need to be run on an open diff. However. This setup makes me wonder if he could install a selectable locker line an OX locker or an ARB and get the best of both worlds. In a project like this the cost doesn't make since. But it definitely got my brain going. Especially since I have two ARB lockers sitting in my shop.

[@EdwardMurray06]

@@AMetalWorks I stand corrected. I’ve never fully understood differentials. Like how limited slip would work but clutches make sense.

[@EdwardMurray06]

@@jakeminogue My mistake

[@GaisaSanktejo]

The outer assembly doesn't move against itself, so he could do the same with a chemical/liquid gasket

[@martyn5799]

Chris mate what you do seems to get better and better every single video.What you do build and create out of your little shed and what you work with is truly amazing im in literal awe.Keep the content coming please dude 💯💯🔥🔥👍👍😁😁

[@aarongrabowski3775]

You a a damn good machinist Chris. I like seeing you come up with your own design’s rather than just buying something that is pre made. Keeps you thinking outside the box. You have become one of my favorite channels. Thanks for all the great video’s.

[@monsieurbacteria2314]

Once again, I'm very impressed with the quality of both the video work and the machining and welding you do. Great work!

[@AMetalWorks]

Your fit and finish/attention to deal is getting MUCH better. Plus this diff idea is awesome. It gives me some ideas for my own projects. Btw the way. Grease will work absolutely perfectly in this setup. The reason diffs need oil is to lube the ring/pinion gears, pinion bearings, and axle carrier bearings. You don't have any of those requirements in this setup. You carrier bearings are sealed, you don't have a pinion at all, and your ring gear is a sprocket. The spider gears technically only spin when the tired are spinning at different rates. They have a lot less rotational action than those other parts would. Plus you can pack the hell out of them with grease, like a wheel bearing. The only suggestion I have is an o-ring or RTV on the two halves of the diff cover. Even grease will start spitting out eventually. Keep up the progress man. I really enjoy watching your growth. One last thing. Seriously consider cutting the back put of that baja body like a class 5 unlimited baja bug. That will hive you WAY more room for you to move your seat back. That will help with overall packaging for steering too. You might want to consider going 100% hand controls too. Like an old school honda pilot.

[@piratius]

I know this is at a totally different scale, but the Traxxas RC cars run a sealed differential with silicone grease inside, then an external (unlubricated) ring & pinion. I know they're not subjected to nearly the same forces as this differential will be, but if he can find a pint or two of *heavy* weight silicone grease (500,000 weight? Million weight?), he'd have a bit of a viscous locker in the unit - no clue how it reacts if it gets hot though - it may thin out at the higher temps this differential will see!

[@boltonky]

Awesome to see how far you have come over the years, i went out and brought a bunch of machines then realised i didn't buy tooling so now i keep getting stuck paying people to fix/make stuff i can't. Keep it up and keep enjoying yourself

[@YimersonRomangenesis]

Thanks 🎉 this IS a Big help for many people 😢 you are a hero continue this way

[@oilio5465]

Preheating aluminium trick. If you block the air holes on your blow tourch. You can leave a black carbon soot layer on the aluminium . Then heat as usual. When the black carbon disapeares. It is at ideal welding temperature

[@brandontobias4341]

Love your videos and your builds, not only the way you film but the soundtrack as well, what ever music you use at 3:00 is all I hear when watching your videos, the combo just makes it that much better. THANK YOU FOR THE CONTENT BRO!!!

[@joshblainer2652]

Your very talented, the stuff you build is awesome

[@davidspilman531]

I’m Glad I found your Channel years ago your such a great Machinist I don’t remember how many times I’ve said this I really enjoy watching make pieces of art and they work when your done !! You need to have some kind of a give away on murch one of your projects and spend so much for a chance to win one that would get you more money to build more projects also !! Just keep up the Great work you do on your Channel Thank you

[@discipleoftheword1785]

3:27 That annular cutter is awesome!!

[@barharborbasher427]

It would work excellent as a center diff as well. It would be a pretty ideal set up for a mid engine side output.

[@joshc6080]

You are the real deal man! Very talented 👏

[@jefferyallison9140]

Chris, this may be your best work yet! And I thought you would have a tuff time beating the fact that you built your own lathe from scratch years ago! Great work! You might consider adding a large o-ring to help seal up the housing. Awesome first video of the year!

[@stevenrennie2612]

It’s amazing how u have progressed with fabrication and engineering

[@garycollins5434]

Awesome setup especially with you doing the cutter brakes that you are going to install in it

[@larrydavidson3402]

Great job on the differential Chris. Your machinist skills just keep getting better and better.

[@SadPuppySoup]

You know sometimes I hear and understand what you want to accomplish but can't see how your going to make it work then as I watch I start to see it all come together and somehow it just works, I'm a little jealous, I know in my head what I want to make but just can't make it work. Your chain drive diff is something I've wanted to figure out for a couple of years, wonderful job. Go power sports mite want to by that design, that is a game changer for go karters.

[@realnutteruk1]

I'm not sure anyone has said this yet, but in the UK we call differential braking Fiddle Brakes... mostly used on tractors and trials cars... trials cars are maybe a sport that doesn't happen much outside the UK but well worth investigating!

[@jammerlupardi8782]

It’s got nothing to do with braking, it’s about power going to the wheel with least resistance…no offense

[@realnutteruk1]

@@jammerlupardi8782 Um... I think you're wrong... The ability to brake one wheel means you can either stop the wheel with less traction spinning away all your power, or in a situation where both wheels have pretty much the same grip, you can slow the inner wheel and turn more quickly.... This is what torque verctoring om modern EVs is all about.

[@flynncoskerie2723]

Same here in New Zealand common in the trial truck/off-roading seen always been known as fiddle brakes

[@GaisaSanktejo]

Heh, I learned something new today (and I'm a brit!)

[@codyjones4280]

We call em cutting cutting brakes out here on the west coast.

[@williamjones747]

The idea of that diff is awesome, I have rebuilt a few over the years and have had to a few times because of the wrong gear oil being used. I'm sure if you machined some o-ring grooves where the diffential mounts to the housing it would work fine for you.

[@jonathantholen919]

DUDE AWESOME!!!!! No knock at all..... differential build is so you can "tractor brake", right? Can't help but think short wheelbase gonna be to quick of movement for application. Sooo look forward watching to see how it is. Thank you for awesome builds!!!!!

[@neilkirkes]

Awesome work! Can’t make it any better than that.

[@blobcsgo7190]

you make it look easy. Custom sprocket mounts and even bearings are a pain in the butt and you have to be very precise. Nice work dude!

[@mrutherford8590]

You’re really good at making parts

[@suntzu6122]

That lathe is equal parts incredible and terrifying.

[@jasonhovey815]

Great job only recommendation is I would’ve put a O-ring groove in the housing between the differential. And the other thing is some type of breather.

[@BraxxJuventa]

Thanks for filming Chris. 😁👍🏼

[@jaredbudzinski8434]

Now this is some of your best work by far. I love seeing the growth over the last few years!

[@chrisg9050]

Your machining skills are 👌

[@carlstrohm3785]

You can put oil in that differential. Machine grooves and use O-rings between the diff and your tophat at both ends. One plug can be used to drain and fill it. Just weld an equal weight on the opposite side for balance. 👍

[@jimhowell4937]

Fantastic job. Suggest for your next project build a long travel, high speed Tank tracked vehicle. Look up Ripsaw. And you’ll still be able to use chain drive.

[@larryperdue508]

Just a little tip I saw on U-TUBE when welding aluminum run your welder on 200 amps DC and mix in a little helium and get try it on scrape. 😊

[@htmmotoring]

Dudee that hole saw at the beggining its just beautifull

[@michaelmeck6441]

It's called an annular cutter. Much like a hole saw, but extremely precise, and for metal only

[@mickfbr]

Love your work brother 🙏, keep up the push to extending your skillset.

[@BarnOwlProject]

My man makes his own pillow block and flange bearings. Chris....you're becoming unstoppable.

[@spdy3926]

OMG this differential build is glorious! Thanx Chris. Good job man.

[@jmumm422]

This diff is a thing of beauty

[@Shadow0fd3ath24]

been wanting to do a motorcycle powered cart so this is awesome as an idea

[@Ratkill9000]

A differential is under rated for these and other buggies. You get a hold of an older Miata with torsen limited slip and that could be a huge advantage, especially off roading.

[@austalien1]

firstly happy new year Chris 🎉🎊 secondly I am totally blown away by your ability to build these amazing things out of basic scrap metal in your back yard. I hope this year goes very well for you.

[@kevinsellsit5584]

Nice! I would recommend a tiny pipe plug opposite the grease fitting to let air out when you pump grease in. Your only leaks are between the bearing and housing and without a vent you could break the welds when you are putting the grease in. Don't overfill it with grease because it will need enough air in there to compensate for expansion when hot.

[@Skiridr22]

Next time you build one with seals so you can run oil in it, that’s a vary creative idea for that setup

[@Roger-hq1yt]

V.neat indeed, youve come long way from the Crude go karts you used to build.

[@BlackAndBlueGarage]

Awesome! I'm doing diff steering on a rock crawler this year. Hoping it works as good as I imagine.

[@martyn5799]

I've just subscribed to your channel my friend I'll check it out once I've watched Chris do his incredible work.

[@BlackAndBlueGarage]

@@martyn5799 I'll never be as cool as Chris 😎

[@olivernice8291]

Beautiful craftsmanship. Another interesting video thank you

[@whitecompany18]

Have a look into "legends" race cars, they use Yamaha bike engines with a driveshaft coupler on the front sprocket then you can use small car rear axles direct to the bike engine. Plus I bet you could make a beast of a legends race👍

[@whitecompany18]

*beast of a legends race car.👍

[@difficultkunt4050]

Chris has obviously done a weekend metal course to be this good..😂 Happy New year friend.👍

[@tobycrystal]

Agreed great work but to your concern of leakage you could add oring grooves between the diff and housing as well as between the small side and diff

[@mikemchaney1003]

Don't worry about a grease fitting. Use a pack of CV axle grease. Pack it all and then bolt your housing on. You won't need to keep adding grease. Pack it once and go.

[@BeaterJeep]

lol the euros do this with a coffee can and Miata diffs 🤣🤣 over-engineering is a great art!!

[@paulwatts905]

Wow , amazing quality engineering

[@davidowen888]

Nice machine work Chris 👌

[@MRR-qv3bw]

@17:33 I would cut a groove like you did for your c clip where your diff bolts together and find an o ring to fit so you can run fluid! I think it'll work and you are more than capable with skill and tools you have on hand! Worst case scenario YOU END USING GREASE😜

[@JamesNoar]

if you wanna do oil cut out a gasket for the diff and great content man keep it up

[@Goesinya69]

I was dumbfounded to see that there was almost zero runout on that diff! Crazy!

[@cmtfarms9777]

Hey if you want to use grease i recommend john deere corn head gear box grease it's from really thick to thin and back to thick so it can lube all components with out leaking out of the gear box.

[@GaisaSanktejo]

Fantastic work and HAPPY NEW YEAR Chris! Keep up the good work, that final result looks exactly how I believed you were going to recreate it after seeing you pull that diff from its old housing! If you choose to use fluid in that housing rather than grease, I'm sure you could cut grooves for o-rings and the like and/or use a liquid gasket. Either way, love what you're doing man, very innovative!

[@myurcek05]

Impressive build!!!

[@TRabbit1970]

Ever tried upping the frequency rather than amperage? Much tighter arc for better control, and much deeper heating locally for a given amperage.

[@jeffburmaster5306]

200 HERTZ will do better for ya if your machine will go that high.

[@alessiocarlevaro6934]

@@jeffburmaster5306 spotted the steve morris fan lol

[@stephencarr7173]

Very nice work. So nice that I would love to have one just like it if you ever build them for sale.👍

[@paulwalker427]

fantastic work chap

[@stevenmccrickard1401]

New Sub, thanks for the content. I found your video interesting, informative and entertaining. I look forward to viewing more from your channel.

[@josealmeida8731]

New year, new ideas.

[@sammylisasmith2104]

You do great work thanks for your videos

[@leehuntley189]

Chris look at redline shockproof diff lube! It's really thick but not as thick as grease! Alot of racers use it especially in 4wd transfer cases!

[@kristurner757]

Awesome creativity!!! Keep up the good work.

[@markstone2877]

Looks amazing! Happy new years.

[@martyn5799]

Happy nye to firstly the man himself Mr Chris welding lol and all his subscribers,🎉🎉😅😅

[@bryduhbikeguy]

That's awesome work Chris.You may consider machining sleeves that slide over the cv, where the axle goes into the diff. ,and screw it on so you can carry an extra axle for trail repairs instead of welding.Whatever you do,it'll be great. Have a Happy,and Safe New Year.

[@djo_man]

Here's a challenge; try making floating brake discs, and hardmount the calipers.

[@kyles5513]

You do good work man.

[@tomtippelaar6186]

Hee man great project, when watching ad 5:00 making a chamfer. You could just put your insert on somewhat 45degree en pus against it. its in a 4 jaw so it wont come out no matter what.

[@davestevens4263]

Shoot dang , that turned out great . Always being amazed by your skills & work .

[@neilmchardy9061]

For grease use cv joint grease (molybdenum disulphide) but mix it with hypoid gear oil to make it a wee bit thinner.

[@reviewaccount469]

Sprocket driven diff is crazy awesome!! Made me think about having the diff have both a sprocket and a ring gear so it could be driven horizontally and vertically to transmit power through a driveshaft forwards for 4wd. I'd still like to see an effort getting that motor up under the back of the vehicle instead of sticking way out the back.

[@Todd_G_FPV]

It's super hard on the ring and pinion to transmit the power in the opposite way it would normally come from, engine to pinion then ring gear but l think your talking about motor ring gear to pinion to front?

[@reviewaccount469]

@@Todd_G_FPV You are probably correct as far as a standard ring and pinion gear you'd find in a diff, ie. spiral cut gears for minimal tooth engagement, however I didn't mean there wouldn't need to be design consideration to make my idea work. For instance some transmissions have diffs built into them for AWD like my Audi, and then you also have transfer cases that effectively do the same thing. I think it could be designed to work like I am talking, and don't forget these are automotive grade parts running on a snowmobile motor under 100hp.

[@Todd_G_FPV]

@@reviewaccount469 very good point, and I forgot the automotive industry did this in the past!

[@bjfishing9046]

You should be able to run oil in that. The cv axles retain the seals. As long as you can create a sealing surface between the diff and the aluminum it should work fine.

[@JBLPL]

All the best in new year 😎

[@michaelgray8986]

Use a thin gasket material on the side where the differential bolts up and turn an internal o-ring groove on the other end and you can use gear oil....

[@davidmarion9178]

If you machined for o-rings .Yuo could then use diff oil and then you could put in a lsd . Great channel. P.S. I use a hot plate to get thick metal hot for welding. Again great channel.

[@notimegarage8632]

I knew you'd come up with something wild 😊

[@jasonplant5432]

Duuude!! Wow! Just oww wow!!!

[@marcussmith6470]

Nice work pal!

[@yujuanhe720]

I have subscribed this channel long, but this is one of the thing I'm most interested, want some ideas on how to build my own chain drive diff

[@metaldog7128]

Nice work Chris 👍 and a HAPPY NEW YEAR 🎉🍻

[@elijahdossett3528]

Top notch video sir I love your content

[@chielopel-Merrychristmes]

Hi Chris great video like always 😉 i wish you a Happy New Year greetings from the Netherlands Chiel

[@TimberTrainer]

Grease should work great for the diff gears. Most rear end friction is from the ring and pinion that yours doesn't have. A small leak onto the sprocket and chain isn't bad either. Just make sure to keep any lube off your brakes.

[@marcayres8567]

Happy New year dude💚🇬🇧🌱

[@bobmendel101]

Happy New Year to you your family and all your subscribers.

[@tictac374]

Happy New Year!

[@dougtravins9624]

Happy New Year Chris!

[@kieranegan6874]

Awesome stuff as always Chris hope you have a great New Year🎉🎉🎉