Anyone know where I can download a repair manual for a 2011 Silverado from a reputable source?

 

Any factory repair manual is likely to be in the 10-15 Gigs in size.. Helm publications at one time had the manuals in DVD format but they ran about $400...
You might check Ebay for manuals... paper ones are much more common as publishers have really clamped down on the availability of electronic ones....
What specifically are you looking to fix?

UPDATE: I just checked Helm inc and they list the manuals in electronic format for all models 1998 to 2013 in a USB drive for $400

 

thanks in2pro. I don't have any specific issues at present, I just wanted the manual when I did my own repairs. $400 is a bit to expensive for what I need.

 

Subscribe to Alldata, it has everything you will need.

 

Alldata is an excellent choice also... a Google search will get you a discount code too so a 5 yrs subscription is only about $25 ....