The bulldozer is actually a front end loader made by John Deere. It is probably one of the 200 or 300 series based on the size. The episode should be listed as 2.12, not 2.02. Compare to images here: http://www.wired.com/images_blogs/photos/uncategorized/2007/10/23/loader.jpg

http://www.deere.com/en_US/cfd/construction/deere_const/wheelloaders/deere_4wdlo- ader_selection.html

Bridger's motorcycle in "Daggers" (2.01) is a 1994 Suzuki RF900R.

The vehicle behind the indian chief in "The Fear That Follows" (2.03) is a 1991 HX3 Hybrid Van.