Car Differential MOWER: Build & Test!

no brain cells were used in the making of this video . . .
Music: Skorned - Psychosis, Lesions

[@ThunderHead289]

Today on things you should never make .... Someone suggested locking one axle to double the blade speed - thoughts?

[@DeadReckon]

I mean... I'd build a shield between you and it if you do that, repurpose a mower deck or something. Don't want that blade coming for your head!

[@huzudra]

I think it's a great idea, but 100% you need some shield around the blade so it or rocks don't go through you.

[@outlawbillionairez9780]

They have KZbin channels where people aren't eviscerated by wayward chunks of uni-strap. ... I don't watch those channels.

[@cwbintn8949]

Build a shield to keep debris from bonking you in the back of the head. Also some higher gears might make the blades go faster. More tire revolutions = more lawn mower blade madness.

[@sachideshmane5088]

Locking one axle would give you half the blade speed. Also, real brush hogs use pivoting blades on the ends of a spinning arm so things don't break when you hit a stump.

[@jimgoodwin6440]

You may already know this but Bush Hog blades are mounted on the hub with a single bolt such that they swing freely. So if they hit something solid, they just bounce off and swing out of the way but the unit doesn't stop spinning. Then centrifugal force allows the blade to swing back out to resume cutting.

[@ThunderHead289]

That was the part where I had said I already made a critical mistake and looking at a mower for 5 minutes before starting would have revealed that

[@ridestreet20]

I disagree. Bush hogs are made for going real slow in rough terrain. this mower can be used at high speed in the big flat areas.

[@Chris_at_Home]

I thought they used a few chains.

[@assassinlexx1993]

That is a flail that uses a chain. Really dangerous because the chains break and fly off. Bad day for you if it hits you.

[@MaxGiganteum]

​@@assassinlexx1993 You're correct, flail mowers use cables or chains with a piece of hardened steel attached to the end of them. The number varies depending on the size of the unit and available power to drive the mower. They're lethal on vegetation - especially vegetation you normally don't want to mess with such as wild blackberry patches or similar growths that are covered with thorns or spikes. They're also preferred for growth such as trimming back tree branches or brush that contains "heavy" brush or bushes that need to be completely wiped out. As for safety, all those units I've used or watched were contained in a steel shell (which effectively was a scattershield) or were all facing away from the driver when in operation. As long as you operate them as designed, they're safe.

[@dentoldani3460]

The vocalist of the band playing this song sounds EXACTLY like the late great Layne Staley!!!!!!!!!! Cool mod there, Luke!

[@jaxflfreebird]

I just made a similar comment. Maybe he is back from the dead, you know, was reincarnated or something.

[@kingbaby8761]

Good God, you ain't kidding. Don't recognize the song, though...

[@NutNRun_]

i thought i was the only one who noticed lol glad there are some AIC fans still out there

[@BonFromage-sb5ow]

@@NutNRun_ I thought I was getting AIC vibes from the music. I thought it might have been an obscure song of theirs.

[@chadhelmer3835]

As a guy that's got 20-30 years on you, I can attest to the need to save on the ole' back! They don't get better, just worse. Fun vid!

[@RHall1]

This would make a much better dethatcher than a brush hog

[@PaulThomas-qo9vy]

Ditto! Amen to healthy back advise! Had to retire early due to back & other mobility problems! It sucks every day! Paul from S. Central Tx.

[@AutoCrete]

I totally agree with Paul! I have some 35 year old steel parts and while those parts are still fine. The bones they are screwed into... not so much.

[@fieraci8500]

So true. All of that stuff eventually catches up with you. Use the workbenches, saw horses, mechanics carts, etc. Work upright, and off your knees/not squatted down, every chance you get. You do better work that way anyhow.

[@turnertruckandtractor]

Mid 50's and I am watching this 4 days into a microdiscectomy recovering. Yes to saving the back.

[@stevehei8035]

You are definitely the OG of classic car/truck KZbin and much appreciated Luke! 😊

[@jodywales6760]

DETH MOWER 3000 can not be stopped. It can not be reasoned with and thats why we love it. Groovy!

[@maxbialystock254]

Luke, I grew up in a small midwest town living over an auto parts store. So am a huge fan of this type of channel and you can hold your head up and stand with the best of them any day. A true genius!

[@RandomDude989]

I've thought about doing this in the past but never got around to it.... Glad someone else had the same idea.

[@edmonddrake1409]

The subtitle-style commentary was on point Uncle Luke. Your thoughts were perfectly representative of reality 😂

[@braxtonnelson7422]

It just goes to show ya... give an engineer some old car parts, some scrap metal, and a welder, and he will do something ridiculous with it! Luke is a treasure! So glad he is producing content for us all-- just waiting for the next collab with Kevin (Junkyard Digs)! 2 engineers = twice the fun!

[@MaxGiganteum]

You aren't seriously suggesting that Kevin is an actual engineer... are you?!? 🤔 - Max Giganteum

[@ronniejohnson317]

I took an old riding mower and made blades for it out of car tire sidewalls. They were great for cutting into a thicket, that you didn’t know what was in there. They just beat it down and if you hit a stump or something, you don’t hurt anything.

[@petecunnien5368]

Looks like good ole American engineering to me!! Love it Luke

[@quarrydesigns]

Had a family member build one back in the 1940s from a Model T axle, pulled it with another Model T. Had a contract to mow the local grass airport and roadsides with it for many years.

[@geebopbaluba1591]

Don’t go under any tree limbs cause many men have met their end on a tractor with plow’s and other dangerous implements. Be careful

[@outlawbillionairez9780]

Had an uncle who got bounced off a tractor into a couple rows of discs it was pulling. .... ⚰️.

[@chandlerparsons4384]

@@outlawbillionairez9780 My uncles buddy fell of a tractor into a disc to. He was rushed to the hospital with life threatening injuries and he sadly passed away.

[@outlawbillionairez9780]

@@chandlerparsons4384 Sorry for your loss. Young folks wouldn't believe how fricken dangerous farming was back in the day.

[@PaulThomas-qo9vy]

Ok Uncle Luke, we need ya fer teachin us performance & economy carb stuff., not turnin to leaf mulch! LOL That sizzle box sounds like it's equipped with "Pulse" Mig technology! Who knew!? Ok, waitin' on more Carb Cheater episodes, hot rod version (Joes car.) Hey, how about a Tall man series, like (#1) work bench build, 48 to 52 inches tall. (#2) plywood sand blast cabinet build, gauntlet glove arm holes about 54 inches tall in the center, etc.. Ya gotta take care of that back, 'cause the price gets pretty high when your older! Cheers! Paul from S. Central Tx.

[@troyboyd7984]

​@@PaulThomas-qo9vy I second this. I recommend this all the time. You guys gotta quit working in the floor.

[@XOTICXPATRIATE]

I think its awesome! I know this tech is often used in manual push mowers but to micky mouse together something like that for a tractor is sheer genius!

[@AutoAli]

As I watch this I can only imagine the conversation on your way out... Luke: "Honey, is my life insurance paid up?" Emily: "UMMMM yea... why?" Luke: "No reason." 🤣😂

[@mikehagan4320]

As a Professional weed mower I do agree that is Crazy in a Fun kind of way Pre Decapitation. Brush hog style blades are sharpened to have a flat leading cutting edge. With squared corners. That is how those blades cut without quickly becoming Dull. I say that in regards to something you said. Interesting video. Be Safe and Best Wishes from Montana M.H.

[@Valerie10384]

Smaller overall wheel tire combination will result in higher blade tip speed for a better cut. Change the rear end gears to 4.11 gears for MORE blade RPM. I also like the flail blades better for your safety.

[@ThunderHead289]

tire change is for height since you'd ne screwed otherwise - doesn't actually translate that much, not like I put mud tires on it vs car tires

[@skinnyWHITEgoyim]

Lower gear ratio will slow the blade down

[@Valerie10384]

@@skinnyWHITEgoyim, When the wheel is rotating the blades it's opposite of what your truck/car does. Wheel rotates 1 revolution & the blade (attached where the former axle used to reside) will rotate 4.11 revs. So the faster the wheels spin with a smaller overall diameter along with higher gear ratio will in fact create more rpms @ a given wheelspeed.

[@timhede9560]

Luke's videos are always interesting and different.. mad scientist stuff ... Love it .. thanks Luke....

[@MrLongshot762]

Make the blades removable, then you flip it over (pinion bearing up) and mount a solid racing seat with a harness. Have fun

[@godfreypoon5148]

HELL YES.

[@Dwigt_Rortugal]

If you put three racing seats on arms it will be like the teacups at Disney. The pukolator 3000.

[@johnburch6927]

Always a pleasure watching you materialize a thought in your head.

[@aaronmoore2691]

Never forget that most of what is on a brand new tractor was once a farmer jerry rigging something together from necessity.

[@aaronmoore2691]

Dont know how you'd do it but if you could get the gearing down and get that thing twirlin itd be perfect for a flat lawn. But as a bush hog operator i wouldn't want to be going any faster than 5mph around obstacles or on slopes.

[@bobbybrown1708]

Love the project, I'm sure before you're done, it will be refined and work like a champ. You have a very inventive brain. .

[@gabrielf2432]

This is marginally more dangerous than my grandpa's brush hog off the back of an 8N (at least it had an overrunning clutch and, you know, a deck). (I still have the 2N he left me, though the mower went with the 8N. Great tractors.)

[@gabrielf2432]

My 2N (which was the designation from 1942-1948 but is barely changed from the 9N) still has the 6 volt original electrical system too. Still starts pretty darn well.

[@danb4275]

The overrun clutch is between the tires and the turf. If the tractor stops too quickly the mower will continue forward and (hopefully) lift off the ground reducing the traction to keep pushing the tractor forward.

[@RobertDickinson-h8k]

I am a blessed man for having a differential nearby. Held onto it, saw a thousand ideas, just not this, but so in.

[@jrussellcase]

Luke, I'm glad to see you put those engineering skills to good use. 😄👍 You da man.

[@bubbapsykalville]

I have done this with a golf cart reared and it worked great. My friends said I was crazy and said I was gona kill myself with it. So I stopped listening to them all way around. They always laugh and talk trash to me and every body It’s because they are self centered only. That’s a great mower you gave come up with. Keep up good work bro.

[@honorrolls5415]

I love it Uncle Luke The new product to promote The Luke Lawn Cheater Bill in Ft Wayne Indiana

[@lanedexter6303]

The view in your shop takes me back. I miss Dad’s ‘64 Galaxie four door hardtop with 289 and C4. His was pale yellow. Well, I miss my ‘56 Chevy, too. And my ‘61 Fairlane, my ‘58 Caddy, and ….. can’t go back. 🙄

[@practicalman45]

I started gathering parts for making a papercrete mixer. Similar idea, but the pinion points up and spins a lawnmower blade inside of a tank for chopping and mixing the papercrete. Those actually work pretty well. I have a Lincoln 9" axle with open diff., one end of a 1/8" thick round fuel tank, about 4 ft diameter and 3 ft tall. And plenty of old drive line ends and lawnmower blades. Helps that I had a welding and fab business for 30 years and still have my tools...Now that I'm retired maybe I'll finally get around to it?

[@reidarerbe8501]

I have been watching youtube almost my entire life andyou have made the BEST intro I have ever seen. I applaud you Sir.

[@ThunderHead289]

Thanks so much 😁

[@hayneshvac2]

pretty cool idea...I say flip the rear end over, do a 3 blade set up, and do some gearing using different sized pulleys and belts...I think it could become quite interesting.

[@maxwalsh234]

i love how the first thing it did was try to kill him. absolute genius video idea... 😂

[@Dan-hk3ge]

Funny enough I grew up pulling a mower just like this. That’s awesome to see again.

[@PatriotPaulUSA]

All the old farmers should be proud! This is how half of their attachments were invented! Sharpen that perforated angle iron up and get cutting! Nice Job!

[@richardgamblin6068]

I feel better knowing that somewhere out in the heartland of America there is a mad genius playing inventor on his farm 😂😂.

[@idahoduckhunter]

I feel like in the story arc of humanity, this project was destined to be. I love it.

[@cwbintn8949]

Lol this has old-school Monster Garage with Jesse James energy all over it, I love it!

[@linuspoindexter106]

2:45 The dangling necklace bumping up against the bandsaw safety guard is a nice touch!

[@TheBrokenLife]

Hummm.... I wonder if a flail style blade system may not work a little better. Something like swing set chain with "whatever" for weights? That would also be moderately less sketchy if something came off. Chains tend to lose energy faster than solid chunks of steel. 😅

[@Paulman50]

Blades on the ends that are bent down to stop drag in the center. And Bob's ya untie

[@carlosquezada9309]

Make it like a weed trimmer? String or chain is less dangerous than a chunk of metal flying through your yard like a throwing knife and it would give it more flexibility if it was to hit the ground or something solid. Also just put a cover on so it doesn't throw stuff at you

[@TheBrokenLife]

@@carlosquezada9309 Yeah, pretty much that concept.

[@Dwigt_Rortugal]

I interpret "whatever" to mean maces based on context clues. With swing set chains it would become an effective mine clearing machine.

[@edwardwatson6289]

Built one of these in the 1950' Four hinged blades on a 2 foot circular disc. Brilliant for cutting thistles but highly dangerous with no safety guards but great fun. From the UK. 's

[@danielventura8073]

I love seeing that 64 Galaxie!

[@ThunderHead289]

I'm so close to being done - finally have room to work on it after like 8 years. Super pumped, even if it does like being literally the most obstinate car to work on. Legacy projects being legacy projects

[@tomredmond]

Took my driving test in a '64 Ford Galaxie Wagon way back when.

[@claytoncoolidge992]

These are pretty sweet brush hogs when done. Have not seen any one put enough effort into one to really be a finish mower yet. I do advise some kinda of mesh metal shield that you mount behind the seat of the tractor. A few years ago using my 48 ford 2n and a finish mower i had the pto shaft fail and come apart and a better part of 15 lbs of steel hit me in the back of the head when it happened. Fortunately I was ok just a nice gash and a big knot on the back of my head. Now when I do anything with it i have a 2ftx2ft square mesh shield that I made out of a chunk of metal goat panel fence and on each side of it a section of chain link fence offset from the other side by half of the opening so that in the end the biggest opening is only about 1.5 in at most. Its kept a few various things from clubbing me and oh can still see through it

[@JunkyardDigs]

Who cannot click on a video with a name like this

[@garageofscrap]

This’ll work for harvesting the corn right? Or mowing the edges of the field?

[@colton75]

What are you doing here? You gotta get the corn in

[@Cold10k]

Can’t tell if this makes me less or more depressed. Entertaining for sure; brings me memories of welding random shit w my step dad.

[@johnvender]

Man you deserve over a million subs more than most YT car channels that have them, fantastic lawn mower. Just wondering if you could improve it using a 9" diff for heavy duty :)

[@CaptainZG]

Love it ❤. I have not one but 8 work benches on my farm/shop and modt of the time I end up working on the floor or wherever except on the bench ....stay safe 👍👍

[@bassiclymike]

I'd get the tallest gears available for a 7.5, get those blades spinning quick

[@bryancondrey6457]

Tall gears might get offset with taller tires. I think he needs something closer to 1.5:1 but I know that is not made. Anything to speed up the blade will help.

[@robertclymer6948]

And the term "Mad Scientist" takes on a whole new meaning here! lol, good stuff Luke. Love it!! Cheers from Motown/Dearborn.

[@thomasharvanek2411]

Swinging blades on a solid middle may be best when you begin hitting things Luke

[@the_dog_says_moo]

Definitely. Imagine if that thing hits a.rock buried halfway in the ground

[@kevinbouchard5362]

Yeah flail mower blades would be excellent for this setup and would make replacing blades much easier. Also looks like the speed of the blade is a bit on the low end, I'd make a cross and have a total of four cutting blades!

[@the_dog_says_moo]

@@kevinbouchard5362 and the blades will turn even slower when he puts the bigger tires on

[@thomasharvanek2411]

Heh, he needs 4.10s next!

[@Mr.Sir...3]

My grandfather made one of these out of a dump truck rear end. He put a housing around it and I think it had a slip clutch on it. With real bush hog blades. I never remember seeing it used, it was just one of the many old thing they built “during the war” out of necessity.

[@RussellFamilyAdventure]

Put an old hood over the top to keep things from flying up and hitting you.

[@mitchd949]

Fun project! I would add a set of drop-down-wheels or casters for moving it around when not mowing.

[@prevost8686]

I wonder if the diff will lubricate itself sufficiently in that position.

[@MrStickthrower2001]

Way better than a lot of amateur welds I have seen...at least it isn't mostly slag holding it together...

[@quixototalis]

You just mowed part of your lawn with a spinning death machine, and a supercell makes you decide to stop? I thought you'd be out there with a flashlight powered by a wire hooked to a metal kite.

[@davewojtowicz2246]

This is a very valid point

[@dispatch444]

He had a perfectly good youth sized helmet for hail protection… lol

[@danm2422]

I love the music you put in your videos, dude sounds exactly like Layne Staley from aic.

[@daviddietz1165]

A larger tire will make the blade turn slower so you will have to drive fast to get the blade speed you need

[@wobblysauce]

Different tread pattern, add some weight... call it a day

[@bzmotoninja83]

True but, he was alsot talking about getting a 3.73 gear so, it would almost be a wash or, just a slight improvement

[@flhusa1]

Find a good used mower deck as wide as they make. Use the rotating yoke and attach a pulley to it to be the drive belt going to where the mower deck drive pulley is. Now you have finish mower. Find a brush hog deck that the gearbox is shot and do the same thing. If you can make it where both decks mount same way you will have brush/slasher and a finish mower that will safer to use and we will still be watching future videos.

[@renem6441]

Amazing lawnmower!! Dangerous yes!! You could machine a rear flange yoke in a way to bolt 4 blades like the brush hog have?!! Will increase the danger level 😂😂

[@outlawbillionairez9780]

Hahaha 😂... Your comment..... "DIE! DIE! DIE!!" HAHAHA 🤣

[@jeepanimal2943]

Nice! Actually, iffin you swap out to slightly smaller tires, or air down those, and attach small brushes to the tips of the "blade" you could also use it as a lawn sweeper/lane buffer. Cuz, you know, everyone loves a well buffed lane.

[@tkskagen]

I cristen this as the "Fox Blade", because Safety 3rd!

[@ThunderHead289]

Best name

[@jrussellcase]

Peg would approve.

[@dispatch444]

@@jrussellcaseYou don’t need to worry about safety! Lol

[@grandpa7278]

Been there done that! My new Kioti has a bumpy seat and no gears to shift, and She's beautiful! ...really, think im in love!

[@ssmith2980]

It could double as a road grader!

[@oldguyhobbies4627]

Never thought I'd be into tractors but that is a nice vintage looking tractor.

[@kenleppek]

An open differential would probably be better when you go around corners at slower speeds the blade speed will actually speed up due to the nature of gear reduction in the spider gears

[@ThatDudeNamedZ]

I was thinking the same thing.

[@BenjaminGarcia20]

Those 8/9N tractors never die, i own one and its still running strong to this day

[@thatdudeinorange5269]

Like Ralph Nader once (or twice?) said: unsafe at any speed 😂

[@robertclymer6948]

To answer my own question, No it does not change the timing. It does somewhat effect how the distributor gear drops in to mates with the cam gear, maybe by a tooth or so. For perfect alignment to # 1 cylinder, you and tweak the oil pump drive rod the distributor goes into and get it to match up very very close , or perfect match up to # 1 if you get lucky.

[@davyp2993]

You may call it "redneck engineering", but in northern Scotland we class it as "made on the croft". You use what is at hand, the welds might be a bit rough, it looks a bit Frankenstein-ish, but does it work,? Yes,! Your neighbours will come round, laugh and criticise it, but also suggest a few modifications, and in two years time they will all have built a similar machine and have forgotten about the day they came round and laughed at you. Keep up the good work,! Another difference is, in Scotland it would be painted with "red-oxide" paint, as the wet weather would make it rust, and it covers the bad welds.!

[@soupflood]

The blades should create an upward draft so that grass is pulled into them, they should be slightly twisted at an angle like a fan's blades.

[@Belladonna_Soul]

"I think Imma swap a set of 3.73s into my mower this weekend..." I love this project!

[@firepinto]

Mowwwwterinnnnnn....

[@codysp]

Pretty sweet 9N! I love my 1944 2N, hellava work horse. 🙂🚜

[@lucasstiles8012]

It's not stupid if it works!

[@Maxid1]

The helmet is a really good idea! That way they can tell who's dead. That and I can never get enough of watching people driving a tractor wearing a motorcycle helmet.

[@ejtakach]

Don't tell your boss. He's going to tell you to productize it!😊

[@ThunderHead289]

I feel for him, he's way smarter than me - especially with handling legal and paperwork. Then there's me, the programmer who's a potato with anything else

[@tlake1031]

Thank you!!! I'm going out to make me one but upside down and use it as a massive spreader!!! Bout to fertilize the entire farm in one day 😂🎉 YOU DA MAN LUKE

[@TheCatOfAges]

reminds me of the wife spinner 3000

[@jr7392]

Luke does another crazy project and still has all his limbs attached at the end: success.

[@AntonioClaudioMichael]

Free towing Axle mower impressive its actually cutting pretty well with that metal

[@P3L0745]

It's quite cool, looks like a rehash of the ancient implements, pulled by horses or oxen. Nice job there! (Defo bigger wheels)

[@devondeaton2103]

Thanks for turning me onto a new band. I'm a huge OG AIC fan. Had me wondering if there was some new material someone had found somewhere that I hadn't heard of...

[@ThunderHead289]

Also big aic fan✊️

[@davelewandoski4292]

You need to get a parent PDQ! Love it! Great to see you get a decent sized shop Luke.

[@ThunderHead289]

It's nice after all these years to have somewhere decent to work

[@tribble1]

Learning how to squat and deadlift completely eliminated my back pain. Wider track + 2 blades in an X would make that beast extra deadly.

[@wozzlebaby5313]

Glad to see I'm not the only one that ends up doing half of the work on the ground...that's where most of my tools end up anyway!

[@PaganWizard]

Just when you thought it was safe to surf KZbin, some immature insanity like this, infiltrates your feed, but dam it looked like a lot of fun!!!!! If you want to keep this rear end, maybe slightly taller tires, but not much. I was also thinking, maybe add a second blade in an X pattern to double your cutting edges. GREAT VIDEO Luke!!!!!!

[@Psiqo]

And these are the videos I live for, is it practical? No is it safe? Also no but was a fun side project to take your mind off the stresses of life? Absolutely

[@Eviltw21]

This is one of those I'm bored and I need video content videos... love it

[@ThunderHead289]

Nay, I know what gets views and what doesn't- stuff like this doesn't on my channel, I did it because I wanted to. I'd do youtube a lot differently if I was here for views - views are an easy formula

[@Eviltw21]

@@ThunderHead289 I understand it's not for view counts I just enjoy these types of videos

[@victoryfirst2878]

Luke, since you are a Ford man, we must be blue blood brothers from a different mother. Nice job fella as this is something I never built but thought of from time to time.

[@jimharvard]

i'm a retired attorney and i once heard a story that when gasoline lawn mowers became all the rage for the newly built "suburban yards" in housing plans after WW2, for a few years into these new "cutting machines", homeowners were holding them up while running and using them to cut "hedges." apparently a lot of people got hurt doing that. i don't know why your "brush hog" made me think of that story.

[@WarrenFloyd-xr2js]

My dad and I did this in 1979, we filled the tires with water and put snow chains on, the blade was made from a f150 rear leaf spring,yes it was a beast,and dangerous

[@jeffsr8300]

Heck yeah, what the hell it works, glad to see your back to what looks to be 100% and that you still have your 9n.👍👍🇺🇸🇺🇸

[@ThisTimeTheWorld]

The best axle based mower I've seen had 2 blades with 4 arms each and they swiveled like brush hog blades,covering about 50 inches together, linked by 2 auto belts .There was a tray with concrete blocks for traction, and a scatter shield behind the tractor around the trailer tongue area

[@sofakinggood5829]

I liked this project. I have a 54 Ford Jubilee. Jim from Leesburg Virginia

[@Miner-49]

My great grandfather made one of these. I remember watching the farmhands use it around barns and tobacco bases. That was back in the 80’s. I don’t know whatever happened to it after getting a real bushhog. Probably went to the sinkhole.

[@okjd159]

One of the most dangerous and awesome things I have ever seen.

[@outinthesticks7235]

I built a death mower from a ford 8.8 rear axle. 3.54 gears were not low enough for blade speed. So, I installed 4.88 gears, it was unstoppable.

[@garywinters2282]

God I love it, I'm heading to the salvage yard tomorrow!

[@skybugproductions7527]

When I was a kid living on the farm we had one of those made from a big truck axle. The tires were shredded on the inside from the blade catching stuff and swinging it against the tires.

[@frasercrone3838]

As stated use the swing blade set up for grass. It is only the last few inches of any blade that actually cuts. I have seen one of these where a ride on mower cutter deck was mounted under it and it drove the deck. It had much bigger wheels and it worked really well.

[@beast64375]

Those type brush cutters used to be mounted higher with 2-4 scythe blades on them for mowing hay fields. Also, there was a chain driving the axle from the running tires on ones I've seen pictures of from the early 1900's into the 30's.