Big Tractor Power is in bunker silo with a 70 hp JOHN DEERE 3020Tractor working with a 204 bu. 4 straw walker JOHN DEERE 9501 MAXIMIZER pull type combine.

I had three 3020's in my early farm life. Had a '65, a '67 and a '68 years model. Farmed almost 1000 acres with the three old horses. Traded the oldest year model in '71 for a 4320 with cab and cold air. Surely helped beat the Texas heat! Later, traded all but one on 30, 40, and 50 model John Deere tractors. Still have the '68 3020 in the family.

That sure seems like a big load on, and weight for, only a 70 PTO HP tractor, yet it is doing it just fine. I would have thought that even a bit much for a 4020. Very cool to see

I still remember seeing my dad backing a brand new 3020 off the delivery truck it was gas but a huge step up from a super A farmall

I run the slightly older version combine, 7721 pull type. JD recommends well over 100 horsepower to run it.

I find 170 is plenty. On the hills with grain in the tank you want front wheel assist or four wheel drive or else that combine will push/pull your little tractor all over.