LINE BORING an old Scraper! - BORE REPAIR!- Earth Mover RETROMOD -

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  • Опубліковано 26 лис 2024

КОМЕНТАРІ • 152

  • @Gkuljian
    @Gkuljian 3 роки тому +9

    This reminds me of the cheap 1960 Case backhoe I bought once. I couldn't afford anything more expensive. I lived with it for over 20 years, while I fixed almost everything on it. It looked like it had fallen off a trailer at high speed, or had a big accident, because everything that moved was cut off and rewelded. It was a mess. But it delivered miracles over the years. All in all a true pain in the ass.

    • @Biokemist-o3k
      @Biokemist-o3k Рік тому

      That is awesome. I put a $500 downpayment on a Fordson Backhoe and I was run over on my antique Harley. I will not be able to make the 3 more $500 payments now so I have to call the guy and tell him in a couple days. It really sucks.

  • @elitearbor
    @elitearbor 3 роки тому +10

    Your little line boring machine is a clever, workable solution to your needs. You'll be modifying it for as long as you use it, it's never going to be "perfect", and there's not a thing wrong with that.
    The steadfast attitude you display toward problems arising is great! I don't know why your channel was recommended to me, but I'm thankful. Easy choice to subscribe.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +5

      Mighty kind words! My Grandpa used to say, it's not the fancy tool that gets the job done, it's how the job is approached.

    • @denniscarter483
      @denniscarter483 3 роки тому

      Matt Your grandpa is a wise man!

  • @KoHokCheung
    @KoHokCheung Рік тому +1

    Very nice job. Your line boring set up is so smart. I noticed you feed manually. I remember enjoying your trebuchet videos and the good interactions with your grandpa.

  • @jimmypopp2695
    @jimmypopp2695 3 роки тому +2

    Awesome machine. Grandfathers find the best stuff. I wish mine were still around. You can find some great things at auctions. Thanks for making this video. I am starting a small engine , mobile welding and custom fab business and really enjoy watching yours. Those welds were definitely from another time. I never came across anything that was hardened like that. Great job getting through that.

  • @robertdebusk6157
    @robertdebusk6157 3 роки тому

    Working in some tight spots, line boring machine sure does a nice job. Can't beat the arc of an old Pipe-liner for smoothness, that little inverter never will. Most of them do a pretty good job if you use a rod they like. I will have to look back and see if there are some other videos on this earth mover, for some reason I am not getting notifications. I will check on that.
    Take Care and Stay Safe
    Bob

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому

      The first video is linked in the description, and at the end of this video, just in case you're having trouble finding it. Yeah, I've been hesitant to get a little inverter welder as I figured they weren't much good, but a customer had it and asked if I'd trade my labor on his repair for it. It welds nice with 7014, not so much with 7018, but given it's small size and ease to move around, it's a handy little thing! It also has TIG and Plasma cut built in. Pretty neat little unit.

  • @fergie.c.m2272
    @fergie.c.m2272 2 роки тому

    You are a great teacher. Very excellent job.
    God bless you.

  • @carlospereiraafonso3122
    @carlospereiraafonso3122 3 роки тому +2

    Very honest and genius! Anything work ir you Love what you do!

  • @repalmore
    @repalmore 3 роки тому

    If you make the support for your boring motor straddle the axis the support won't torque away. Or you could put 4 supports. But like you said, work in progress. Thank you for posting. My welding truck has a PTO hydraulic pump and hose reals on the back to drive hydraulic tooling. 250 hp hydraulic drive system ;o)

  • @brucewilliams6292
    @brucewilliams6292 3 роки тому +1

    You did a great job on this. I like your setup for line-boring. Thanks for the video.

  • @carlwhite8225
    @carlwhite8225 3 роки тому +4

    This has been a really cool project so far, honestly I have no clue what it does but will wait till the end to find out, thanks.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +3

      The customer is planning on digging a pond with it. Hopefully I can get some footage of it in use.

  • @tomhendricks316
    @tomhendricks316 3 роки тому +1

    Really great video. I love it when people fix stuff instead of scraping it and buying new.
    Keep the videos coming!

  • @normcameron2316
    @normcameron2316 29 днів тому

    Love the old lathe, don't recognize it, especially the headstock. What is it?
    Sound is good, jingle jangle of gears.

  • @1crazypj
    @1crazypj 3 роки тому

    That was a neat line borer
    WIP is pretty normal for tools you need to use NOW.
    Spent way too much time machining stuff that was welded without pre or post heating.
    I didn't know at the time but found out since, most carbide tools are only designed to cut around 65 Rockwell material (or softer) and 'hard spots' in welded material can be above 65 Rockwell hardness.
    I'm actually glad I don't work on construction equipment any more.

  • @kentuckytrapper780
    @kentuckytrapper780 3 роки тому +2

    Great job man, I'm in the process of line boaring myself, excavator pins.
    Learned alot from your video,keep'um coming.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      I hope it helps. If you'd like a little more information, I also have a video series (they are long videos, and I think they are titled "Tractor Axle Line Bore") on line boring a front axle on a 2290 Case tractor and a video (a single video) on line boring with a slightly different setup on a loader bucket pin on my 1370 Case tractor. I think it's titled "Loader Pin Repair." Good luck with your project!

    • @kentuckytrapper780
      @kentuckytrapper780 3 роки тому +1

      @@WideVisionMetalFab I'm watching your videos, just subscribed, me and you work on alot of the same stuff, great videos.

  • @patdexter9188
    @patdexter9188 5 місяців тому

    Need 3 bearings to keep bar from wobbling. Nice set up!

  • @kellyjones841
    @kellyjones841 3 роки тому +1

    Reminds me of the "Goodson" machine at the engine machine shop, when I was a kid. Great idea with the hyd. Motor and power pack, thanks Grandpa! Really enjoyed it.

  • @EEJester1586
    @EEJester1586 3 роки тому +1

    Well done Matthew that is no easy job. Line boring takes time even with an expensive set up so kudos on that. I assume you were using 7018 to weld your bushings in. I know it seems like some inverter machines don’t weld good but that’s odd on 7018 most of them do really well. Maybe it was just my ear but I I could’ve swore the way it sounded like it was on the wrong polarity, but it’s hard to tell I’m sure your bushings will be just fine though Press fit as hard to move especially with the weld on them lol. Going to be a nice piece of equipment though I’ve ran dirt pan myself and then things can move mountains.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      I did use 7018 on the bushings and Somebody else mentioned they thought the polarity was reversed. I plugged in the leads according to the labels on the front of the machine, but maybe they aren't labeled correctly?? But now y'all have me thinking I better check it with my multimeter!

  • @danharris8046
    @danharris8046 3 роки тому

    Great job on the home made line bore and the bushings

  • @valmet8033
    @valmet8033 3 роки тому

    Thank you!
    I learn a lot from you for my project.
    Greets from Germany

  • @mog5858
    @mog5858 3 роки тому

    nice simple little setup you're got for line boring. one thing that could make life easier is to drill and tap 2 holes in one of your bar clamps for pushing the cones into place. we have done that at work and it makes all the difference when work by yourself. The only side note is to use SHCS as a regular hex head will need too much clearance to use. keep up the good work.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому

      Haven't heard from you in a while! That's great advice, and it's easy to add on.

  • @richardwills7768
    @richardwills7768 3 роки тому

    Classic work recommended you, so you have a new viewer and subscriber...

  • @larrydunlop378
    @larrydunlop378 3 роки тому

    Great job! Nice home made boring bar. Looks like it works pretty good. The only thing going to a large dia drill like your 7/8 right off the hop is the web area of that large a drill is blunt for drilling. Even something like a 1/4 or 3/8 pilot drill it will make for a much eazier large hole to drill. It did work out for you but posting this to show others a more proper way to drill large holes. Nice work all around!

  • @Siskiyous6
    @Siskiyous6 3 роки тому +1

    Nice work. I am fascinated by the techniques of getting precision results from what seem to be crude methods.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      Glad you enjoyed it!

    • @toosavvy3504
      @toosavvy3504 3 роки тому

      ... Points of Reference (for where the finished bore 'should' be) in-the-field are called "Sky Hooks" - skilled hands make 'em....
      Great Job
      tooSavvy @Lockdown UK

  • @Slack-JawedYokel
    @Slack-JawedYokel 10 місяців тому

    Good video. First one if seen of yours and you have a new subscriber. You're sharp with a get er done with what ya brung attitude that hits home with me. Thank you for sharing it and I'll be doing some catching up watching your other videos and any new ones you make.

  • @mrrockpicker
    @mrrockpicker 3 роки тому

    Nice job, I used to works an inside machinist for a ship yard. We line bored stern gates with a tool just about like yours. Slow and easy with the feed. We would have the welders add material on the wire side to keep the bore where it belonged.

  • @Battery-cat
    @Battery-cat 3 роки тому

    That’s very manly work Mathew! And a great service your providing it looks very satisfying

  • @kiwi7341
    @kiwi7341 2 роки тому

    That’s an amazing good repair👍

  • @braunmanuel86
    @braunmanuel86 3 роки тому

    Thank you so much for sharing your experience. This gives me the motivation to repair our excavator.

  • @localcrew
    @localcrew 3 роки тому

    Pin slipped right in. Nailed it.

  • @kenkee2011
    @kenkee2011 3 роки тому

    Enjoyed watching this. Nice work. I have a line boring project that I’ve been putting off and your rig is inspiring me to get it done.

  • @RC-Heli835
    @RC-Heli835 2 роки тому

    Nice job on the home made line boring machine!
    I was wondering if possibly that hole hadn't been worn out to about 3 inches and filled back in with weld where it looked rough.

  • @waynep343
    @waynep343 3 роки тому

    for cone set up. get a bolt big enough you can drill thru it to the cutting bar size.. drill thru the flats on the top for allen set screws to lock it to the cutting bar.. use a nut on the threads to push against the cones.. you may want to drill holes in the flats to allow you to use a 6" rod like winding a garage door roll up spring to tighten the cones in position by using the rod to tighten the nut.. may have to drill next to the holes for the set screws on the bolt head for pins also.. try to get a fine thread bolt and nut. be sure to use dog tip (Blunt and thread relieved) allen screws so you don't mar the boring bar as you tighten the 3 allen screws in the head of the bolt.. free hand with your 1/4" die grinder a relief in the original oval bore to allow your cones to center where you want them to also works..

  • @denniscarter483
    @denniscarter483 3 роки тому

    Keep up the good work Matt .can't wait for the next video of this project.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому

      Thanks! Hopefully it won't take me as long to edit the next one.

  • @eliast4780
    @eliast4780 2 роки тому

    What's the best welding rod to use when line boring?

  • @bcbloc02
    @bcbloc02 3 роки тому +7

    Going to be a good bowl when you get done modifying it.

  • @bitsandpeace
    @bitsandpeace 3 роки тому

    Heard about you on classic work ... Love your channel too! Thanks for recommending this ClasdicWork !

  • @hilltopmachineworks2131
    @hilltopmachineworks2131 3 роки тому

    Nice work Matthew. I like the homemade line borer. If I end up getting a bunch of torn up farm equipment to repair I may have to build something like that.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      Right on! I can't wait to see you making chips in your new shop. :)

  • @dirtnyaface
    @dirtnyaface Рік тому

    Any videos on your build?

  • @mattharvey8712
    @mattharvey8712 3 роки тому

    Bravo on boring machine .......love it ......im thinkn of building a mini lathe......have u tryed carbide cutter.......u running 6011ac or 7018dc negative ....cheers

  • @outsidescrewball
    @outsidescrewball 3 роки тому

    Enjoyed....lots of work...nice job

  • @shanek6582
    @shanek6582 2 роки тому

    Lol, I really thought the bushings only got welded in, not such a precise press fit, that was my plan to help out my neighbor anyway. Got to rethink this.

  • @williamhoward8319
    @williamhoward8319 2 роки тому

    was stick welder for 22 years at a mine

  • @kenmendez6558
    @kenmendez6558 2 роки тому +1

    Great job. Please could you tell me what hydraulic equipment you use to install the bushings? Thank you. 👍👏👏

    • @WideVisionMetalFab
      @WideVisionMetalFab  2 роки тому

      Missed your comment somehow! It's a Temco 30 ton Hollow Ram with a hand pump. I ran a threaded rod through the bushing and through the middle of the ram. I hope that helps. :)

    • @kenmendez6558
      @kenmendez6558 2 роки тому

      @@WideVisionMetalFab Yes, excellent! Thank you very much for the information.👏👏👏

  • @gerryoneill8881
    @gerryoneill8881 3 роки тому

    It's been a while since an earth moving video or any video for a while

  • @pcka12
    @pcka12 3 роки тому

    Like your final reference to 'Hitchikers Guide to the Galaxy', the radio episodes were the best! Particularly the 'precognitive elevator (lift)' which tried to persuade it's passengers not to go up.

  • @cennsa140driver
    @cennsa140driver 3 роки тому

    Gotta love those hollow rams! I couldn't have rebushed my backhoe with out it.

  • @pattoohill5307
    @pattoohill5307 3 роки тому

    Your work looks great. Thanks for the video

  • @mikemuzzell5167
    @mikemuzzell5167 3 роки тому

    Nice line borer . I wonder if some sort of coolant would help your cutting.

  • @gabewhisen3446
    @gabewhisen3446 3 роки тому

    I'd definitely go with the cross brace I did have an employee bend a similar cylinder mount

  • @ทวีศักดิ์แซ่ลิ้ม-ฅ5ห

    Hydraulic line boring, very nice

  • @olleinsulander
    @olleinsulander 3 роки тому

    Super nice line bore machine you got there. I´m fascinated of this process and often wanted to make something like yours. The feed mechanism has always puzzled me so the closeup was much appreciated. The ones i´ve seen use an electric motor with higher speed and make lighter cuts as in a lathe. You can do it in one pass? Beautiful lathe, aswell. Looks like the one Dave Mathews Steam Power Machine Shop uses. What clearence bored hole to bushing? You sir, are a pro! Greetings from Sweden.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому

      The "feed mechanism" for my machine is the screw clamp from an abrasive chop saw. I did try to do the entire bore in one pass, but didn't have enough power. I think I made 4 passes? I usually press fit the bores about 0.004 of an inch. (Roughly 0.1 MM?) My lathe is an old Rockford brand from the 1920's. It's a wonderful machine! Thanks for the kind words! :)

  • @DaleDirt
    @DaleDirt Рік тому

    That was pretty awesome ... What are you using to feed the boring process inward ?

  • @FFLFFS
    @FFLFFS 3 роки тому

    Hi
    Just subbed. Best line boring I’ve seen, more in my neck of the woods lol. I’ve got to build one of those, lots of work for that unit.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      Thanks for the sub and the kind words! Yeah, the customer's bill is quite large for this repair, but it's still way cheaper than buying a new scraper.

    • @FFLFFS
      @FFLFFS 3 роки тому

      @@WideVisionMetalFab
      I was restoring a hydraulic power pack for pressure testing cylinders on my back hoe, when I came across your video. Would you know what the gpm is on yours? Seems like a perfect setup for that line boring.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      @@FFLFFS 10:30 in the video I explain it. It's advertised at 1 gpm but the hydraulic motor's RPM on my line boring machine is too slow for 1 gpm. I think the unit is actually producing something like .75 GPM.

    • @FFLFFS
      @FFLFFS 3 роки тому

      @@WideVisionMetalFab hey thanks for that. I must have missed it. .
      .75 gpm =200 rpm 👍
      I have a small char Lynn motor, should do the trick.

  • @joelmacleod17
    @joelmacleod17 3 роки тому

    What type of steel do you use for the bushings?

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому

      I like using 4140, but I can't always get it, so 1045 is often what I end up using.

  • @theragingredneckhaulsoff6760
    @theragingredneckhaulsoff6760 3 роки тому

    Just curious did you make that boring bar or buy it? If bought can you tell us make and model? Thanks, good work!

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      I made it. I simply drilled holes in it, then filed them square.

  • @warrenpost1502
    @warrenpost1502 3 роки тому

    Great video

  • @finster101
    @finster101 3 роки тому +1

    I'm finding this really interesting and I subscribed to your channel. Just curious though: This is sorta a specialized piece of equipment, isn't it? I mean not even a lot of digging/land maintenance companies own or use scrapers these days. When I think of scrapers I think of a fleet of them working on an earthen damn project or something similar. So, I'm wondering what your plans are for this machine once you are done (if you don't mind sharing). Sorry if you already explained this in a previous video already because in that case I missed it. Thanks!

    • @charlesangell_bulmtl
      @charlesangell_bulmtl 3 роки тому

      Farmland on a slope benefits from "Terracing" And in addition to erosion control is the benefit of moisture retention

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      I really didn't explain it. I should add that in at the beginning of the next video. The customer is going to dig a pond on his property. This was the cheapest route he could go, and I think he'll have a heck of nice piece of equipment in the end. Scrapers are really common around here. All the road departments use them and a lot of farmers use them to level out their fields.

  • @plnmech
    @plnmech 3 роки тому

    what do you plan to with the scraper after you rebuild it?

  • @ShevillMathers
    @ShevillMathers 3 роки тому

    Is that a HSS bit or Carbide? If HSS it’s doing a great job in that weld hardened casting. All very interesting and thanks for sharing. Tasmania 42 South. 👍🛠🇦🇺🦘

  • @whitechurchfarm
    @whitechurchfarm 3 роки тому

    Love the content

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      Thanks! Hopefully so much time won't pass before the next upload of this series.

  • @heatherroseisrflyer
    @heatherroseisrflyer 3 роки тому

    What are you converting the earthmover to?

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      It's cable/winch operated and I'm switching it to Hydraulic cylinders. There's another video on building the front cylinder mounts which explains it better. The video on the rear cylinder is coming soon, I hope! Just trying to finish the edit on it.

    • @heatherroseisrflyer
      @heatherroseisrflyer 3 роки тому

      @@WideVisionMetalFab Kewl, good job. Thank-you for the responce 🙂
      Of course my imagination went straight to a post apocalyptic nomadic camper van 🤣

  • @ronaldchurch6356
    @ronaldchurch6356 3 роки тому

    I have been out of touch with you tube for a while. Did you downsize your shop ? If so when?

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому

      My father forced me off the family farm about 3 years ago. My wife and I had to quit running cattle, bought a house in town and we're running the fabrication business out of the little garage until we can find something better.

    • @ronaldchurch6356
      @ronaldchurch6356 3 роки тому

      @@WideVisionMetalFab Sorry to hear that. I wish you well.
      Keep up the good work.

  • @keithw372
    @keithw372 3 роки тому

    you should make you a locking collar with some jack bolt to tighten up your alignment cones

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому

      Mog5858 made a great suggestion with putting socket head cap screws through my existing split collars. That sounds like an easy solution to me! :)

  • @kooldoozer
    @kooldoozer 3 роки тому

    Really awesome job. Love the boring rig. Cool hydraulic motor. One question, why is your lathe so loud? Something has to be rubbing or loose or something.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому

      Somebody converted it from the flat belt drive to a ring gear and jack shaft drive. They pressed a couple ring gears on over the flat belt pulleys, so it literally rings like a bell. Plus the jack shaft runs in old wore out Babbot bearings, which adds to the noise. It's on my list to put back to flat belt drive.

    • @kooldoozer
      @kooldoozer 3 роки тому

      @@WideVisionMetalFab Sounds like a cool mod someone did to the machine. At least the noise does not mean it is eating itself alive. I would hate that.

  • @asseroflove8689
    @asseroflove8689 3 роки тому

    Nice job, but I would have added a gracing pin to both sides

  • @williamhoward8319
    @williamhoward8319 2 роки тому

    looks like they welded the bush in some real cobble job the shoemaker was areal lulu

  • @JamesDedmon
    @JamesDedmon 3 роки тому

    Great job.

  • @waynep343
    @waynep343 3 роки тому

    undo magnetic tools by pulling them across a magnet randomy .. mixes up the magnetic alignment

  • @OtherWorldExplorers
    @OtherWorldExplorers 3 роки тому

    To make your silver streak pen show up more, after marking your lines spray them with WD-40.

  • @jeffbyrd7976
    @jeffbyrd7976 3 роки тому

    So, why not use a magnetic drill? Thanks for the video.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      RPM is way too fast. I need about 200 RPM for a 2.5 inch hole and my mag drill turns at 570 RPM. It would smoke the bit in a hurry.

    • @daleolson3506
      @daleolson3506 3 роки тому +1

      You would have a hard time lining up the bushings to get a shaft to fit.

  • @andrewzielinski9071
    @andrewzielinski9071 3 роки тому

    Nice work. Will this be for your own use or is it a customers?

  • @James-fs4rn
    @James-fs4rn 3 роки тому +1

    You're the only one I've ever seen on youtube to use a drill bit properly. Not supposed to step drill. Not much more than the web thickness anyway.

    • @channelview8854
      @channelview8854 3 роки тому

      Well, he still step drilled, he just took big steps. I know that I should still to final size on my lathe at work but that cheesey Taiwan tailstock can't hold enough force to drill in one pass. And it is a 16x60 machine.

  • @jster1963
    @jster1963 3 роки тому

    Very nice Sir......

  • @ustarecepusta
    @ustarecepusta Рік тому

    Perfect

  • @notyou6950
    @notyou6950 3 роки тому

    There's a man Australia that does this kind of work really nice.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +2

      Talking about Kurtis at CEE?

    • @notyou6950
      @notyou6950 3 роки тому +1

      @@WideVisionMetalFab the one with a black dog, right?

    • @seagrunter01
      @seagrunter01 3 роки тому

      Cutting Edge Engineering Australia, Curtis, Karen and Homeless (the safety office). The guy is a gifted beyond belief ua-cam.com/channels/2wdo5vU7bPBNzyC2nnwmNQ.html

  • @Mjc103
    @Mjc103 3 роки тому

    What happened to your crane truck?

  • @jimbos3421
    @jimbos3421 3 роки тому

    All ya need is a welder, lathe, and brain - anything can be fixed!

  • @time1800
    @time1800 3 роки тому

    When you have a weld issue like that take the cut from the other side and sneak up on the weld it wont see you till its to late.

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому

      Biden is a Christian. Can't have a Christian man leading this country now can we? We're much better off with a radical, racist, millionaire playboy who has had many affairs and paid many woman to have abortions. OH WAIT. TRUMP LOST! TWICE!!

    • @time1800
      @time1800 3 роки тому +2

      @@WideVisionMetalFab LOL you funny and Blind.

  • @MrVailtown
    @MrVailtown 3 роки тому

    173/19
    Great video , liking the work & the series.

  • @harveyharrington3206
    @harveyharrington3206 2 роки тому

    Looks like someone cut old bushings out welded new ones in

  • @jahmahrahdesafilli6268
    @jahmahrahdesafilli6268 2 роки тому

    Clever : - )

  • @geralspringer1003
    @geralspringer1003 2 роки тому

    your welds not hot enought

  • @markbailey8944
    @markbailey8944 3 роки тому

    just cut the roller off, like they did LOL

    • @WideVisionMetalFab
      @WideVisionMetalFab  3 роки тому +1

      For reals! What the heck is that all about? I'm guessing it has something to do with the roller wear marks in the cross member.