The '19 model year saw a number of key the company's track-type tractors : the Eight T, the D-5 Low Ground Pressure , and the D8R . In broad terms , the D8-T represented Caterpillar's flagship machine https://caterpillard5lgp025958.dailyblogzz.com/42485331/the-d8t-d5-lgp-and-d8r-a-19-analysis