My uncle and father both bought D21's in the winter if 1968 to replace some JD 5020s. What a difference! The Allis D21 was twice the tractor of the JD 5020. Then the AC dealer went broke in late 1972 so the D21 with a few thousand hours on it, was traded on a JD4430. Similar hp numbers but the JD had no grunt. We had to take 4 or 5 ft off the deep tiller for the 4430 to pull it. The JD 4430 only stayed for one crop before we ditched it for a Case 1370 which had similar pulling power to the D21. I sure wish I had a D21 today!
My father sold AC's from 59-83. We had a WD-45 then traded up to D-17's. Finally got a series IV. Also ran a 180 and an 8050. Never had the opportunity to run a D-21. AC rated their HP very conservatively.
Still have Grandad's D-15 Series II and Roto Baler (first one off the line), a C, and an 8010. As we say every time we go to a meet or a museum, "Where the heck are the antiques? We still use this stuff!"
@@andrewsimon19 I'll have to go look at the serial to be sure, but my great-grandad worked for A-C at one of their dealerships in Missouri, and it's been a bit of family legend he got the first Roto off the line. If it's so, the serial is going to be #101.
I miss my grandfather he hadn't Allis Chalmers dealership in Gregory South Dakota not only that we used to do a lot of farming we raised fat cattle my grandfather is very proud of the Allis Chalmers equipment I miss running all that equipment when I was just a little kid we go down through the field and we loaded hit Bales on the hay sled I drove the tractor with the hand clutch when I got to the end of the field I wasn't big enough strong enough to turn it around so my uncle or my grandfather jump up there and turn it and we go back down to field it was the best days of my life I wish I could be back on them tractors again I miss my grandfather and I miss Allis Chalmers
About like any other diesel of that day and way better than the 404 Deere. BTW the AC engine is a 301 not a 300. And the 301 was used in the 190, 180, 185, 7000 etc etc. In this film the 262 cid engine was shown in the D19. It is similar to the 301 but the 301 is a much better built engine. The 3400 series engine in the D21 is a 426 cid and started about as a normal diesel for the 1960's did too. The real good starting diesel engine that I know about is the one in the HD11 shown in the film. We have an HD11 and it starts almost as good as a gas tractor.
