I am a mechanic for a chevy dealer and if any one was wondering if you can put the 2005 silvy e- fans on your truck you can. they come with with 2 12" fans and shoud for around $200 employee cost i bouth the flexalite fan wiring harness for $20 and hooked tham up showed a 15deg drop in temp. if any one wants to see pics let me know i will try and post them. i also have all the wiring schemtics for the install took about 2hrs with making it look factory.