1996 chevy silverado 2500 I am having trouble finding parts for this model. I am told it is the same as a c2500 is that so? I need an injector pump. Where is a good place to get one?

 

c2500 is 2wd, k2500 is 4wd

 

Are you sure its the injector pump, the pump has a PMD (pump mounted driver) that is very prone to go out on these from overheating. More times than not, its these that go out instead of the actual pump. They sell relocation kits where you can place them behind the grill or bumper. Way cheaper than replacing the pump. If it is the pump, talk to a local diesel mechanic that has experience with the 6.5 and see if tell rebuild the pump. Otherwise you're looking at a 700-800 dollar fix if you do it yourself, cheapest place probably the internet. This was the cheapest one I found.
1996 GMC C2500 Diesel Fuel Injector Pump - Standard Motor Products IP25 | StockWiseAuto

 

Do a lot of internet research on any vendor you intend to buy a rebuilt IP from-there are a lot of wash paint resell types out there and the pump you get may be worse than the one you had.

The bad ones get much more press than the good ones so be diligent.
google Stanadyne to find the local dealer.