1. Abrasion resistant track shoe grouser

2. 9 synonyms for Curmudgeon: grump, bear, grumbler, grouser, malcontent, grouch, sourpuss, churl

3. Crawler refers to the units tracks, which can come in single, double, or tripple grouser; however, IronPlanet sells Wheel Dozers as well

4. For use in icy ground, up to 18 rubber pads can be replaced by the same number of grousers, which are stored in the vehicle's bow when not in use.

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