During its production run a few minor changes were made to the 3020 and other tractors of the New Generation series.

These included moving the hydraulic levers from the left side of the dash to a console to the right of the operator, moving the PTO lever from the right side of the dash to the left, a narrower oval muffler for improved visibility, and a longer, bent, gear shift lever.

An enclosed cab with heat and air conditioning was also available as an extra cost option.

From 1964 to 1969 John Deere also produced an industrial variant of the 3020.

[2] Media related to John Deere 3020 at Wikimedia Commons