Popular Post Outbehindthebarn Posted February 13, 2018 Popular Post Share Posted February 13, 2018 https://kokomo.craigslist.org/grd/d/john-deer-4020/6491912730.html 4 Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/ Share on other sites More sharing options...
carlotpilot Posted February 14, 2018 Share Posted February 14, 2018 would you call that a jmd ? Quote Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/#findComment-391940 Share on other sites More sharing options...
j hancock Posted February 14, 2018 Share Posted February 14, 2018 Must be legit because it has a dog on the hood. 1 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/#findComment-391943 Share on other sites More sharing options...
Outbehindthebarn Posted February 14, 2018 Author Share Posted February 14, 2018 a 4020 did not have an especially robust rear-end. I'm thinking it was a conversation piece only. The Detroit repower's were somewhat common, but as everyone knows, the torque on that Mack would break that JD's back in tough ground. Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/#findComment-391945 Share on other sites More sharing options...
Hayseed Posted February 14, 2018 Share Posted February 14, 2018 I can't see that Radiator keeping the Dog Cool for Too long either ... BISTBC. Quote "Be who you are and say what you feel...Because those that matter...don't mind...And those that mind....don't matter." - Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/#findComment-391953 Share on other sites More sharing options...
ws721 Posted February 15, 2018 Share Posted February 15, 2018 (edited) On 2/13/2018 at 8:33 PM, Outbehindthebarn said: a 4020 did not have an especially robust rear-end. I'm thinking it was a conversation piece only. The Detroit repower's were somewhat common, but as everyone knows, the torque on that Mack would break that JD's back in tough ground. The 5020 series were well known for their extremely strong gear cases. In fact there are articles written about them and there legendary strength. Kinzie made a kit to install 8V71 or 855 Cummins when these tractors were new. It was a hold over from the 2 Cylinder days of high tourque impact from the fireing of just 2 cylinders. Remember these are the same engineers of the 2 cylinder era who designed the "First Generation" John Deeres. I will look for the article and post it if I can figure out how to. But a 318 HP Detroit or 350 HP Cummins installed back in the late 60's and still working toady is a testament to strength and durability. A 4020 had the same stamina but its not rated for that engine for sure. The 5000 series was a much bigger tractor. This being said we all know of 175 or 200 HP 4020's earning there keep Edited February 15, 2018 by ws721 Quote Remember if it's got a hood it's no good! Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/#findComment-392078 Share on other sites More sharing options...
Phase 1 Posted February 15, 2018 Share Posted February 15, 2018 4020 and 5020 are both listed in the ad. It appears to be a 5020. Quote Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/#findComment-392081 Share on other sites More sharing options...
farmer52 Posted February 15, 2018 Share Posted February 15, 2018 Definitely a 5010 or 5020 tractor. 5020 John Deere engine is 531ci 4.75x5.00. Seen several 6V conversions but never a Mack. One of....worth a lot of money....mmmm maybe not. Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/#findComment-392086 Share on other sites More sharing options...
ws721 Posted February 15, 2018 Share Posted February 15, 2018 Hard to say but if you look at the steering piston behind left front tire that would make this a 5020. Never heard of 6V conversions, but I'm sure someone tried it. Quote Remember if it's got a hood it's no good! Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/#findComment-392095 Share on other sites More sharing options...
davehummell Posted February 15, 2018 Share Posted February 15, 2018 Did someone do that or was it factory aftermarket? Pretty cool. Quote Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/#findComment-392097 Share on other sites More sharing options...
Popular Post farmer52 Posted February 15, 2018 Popular Post Share Posted February 15, 2018 38 minutes ago, davehummell said: Did someone do that or was it factory aftermarket? Pretty cool. Backyard conversion. Kinze offered an 8V71 conversion for the 5020. Here is one in action...turn the volume up and cover your ears! JD 5020 https://www.youtube.com/watch?v=YRlW7nJIQZk John Deere did offer tractors with a Detroit engine factory installed JD 435 https://www.youtube.com/watch?v=ylyJ1wn07ME https://www.youtube.com/watch?v=qYxvArYFv6g JD 8020 https://www.youtube.com/watch?v=5KZYgq627sI https://www.youtube.com/watch?v=kPJQ2Zx-sFk 3 Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/#findComment-392100 Share on other sites More sharing options...
j hancock Posted February 15, 2018 Share Posted February 15, 2018 40 minutes ago, farmer52 said: turn the volume up and cover your ears! WHAT? Not too shabby handling a 7 bottom plow. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/52503-never-seen-one-like-this-before/#findComment-392101 Share on other sites More sharing options...
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