go to www.rdracingproducts.com
they specialize in Traxxas parts.
They make Carbon Fiber Upper Decks&Shock Towers (One for Stinger pipe also)
Full Line of Aluminum Parts a-arms and a-arm mounts and also a newly developed 3.2mm chassis(Can get Blue,Red,&Silver)
go to www.trxparts.com
they have some of traxxas parts for the Nitro Rustler like the pro ball diff etc.
go to www.gpmracing.com
and they have aluminum bulkheads and ported headers and a turbo ring pipe