06 GTO alternator and brackets

[short71]

I have been gathering all my parts and reading everything I can before my swap starts in a couple weeks. I have an 06 GTO ls2 with transmission. Going into a 71 c10 swb. When ordering mounts they say they do not clear the lower alternator bracket? Question is can I modify the mounts to move it slightly? Do I have to get a bracket to move to the top? And if so is there a cost effective mount? Also is the spacing on the GTO assembly the same as the Corvette or is it different? Or is it a matter of notching to make it fit?.. so far I think I have figured out a lot of it but I'm sure I'll have more questions as the swap gets started. Thanks for all the help this group has been so far by posting!