I dont know anything about the quality of their crawler parts, but they are having a fairly good sale on parts for crawlers/AX-10.
http://www.integy.com/st_main.html?p_catid=124
Losi 8T 1.0, Savage Flux - XL style, LST XXL, Muggy, 3.3 E-Revo Conversion and sitting outside 425hp, 831 Tq Dodge Ram Turbo Diesel. It SMOKES