Lowering kit: www.truckaddons.com/Catalog/subpages/ground_force06.htm

Sway bars: www.suspensionconnection.com/cgi-bin/suscon/7651D2.html

Differential covers:
www.wjsperformance.com/mag-hytec/differential_covers.htm

Computer chip/Engine Control Unit (NOT YET AVAILABLE):
www.hypertech-inc.com/index.html
www.ultimatetruck.com/Products/SuperChips.asp
http://hotrodoffroad.com//detail.aspx?ID=2144

Gibson exhaust: www.bestdarnparts.com/gibson.html

Cool Billet stuff: www.billetcreations.com/pages/4/index.htm

Miscellaneous parts and accessories:
http://tsetruckstuff.com/Merchant2/merchant.mv?Screen=SFNT&Store_Code=tsetruck
www.lettertech.com/ghost_flames.htm
www.streetbeatcustoms.com/streetbeatclub.html