Hi! Newbie from Illinois here!

[my68c20]

I have owned my 68/67/70 something abonimation for about 6 years now body and frame is 68 but pwr steering, hei, and throttle setup is from mid 70's pickup the rear end is now leaf spring and i am really wanting to update the brakes now. All my buddies that delt in this year chevys have been forced to clean up and dont have the parts they used to I am looking for parts in central illinois so i can do this old truck on a budget she is an old beater and that is what i love about her looking forward to im looking forward to learning about more mid 70's parts that may be interchangeable with my old heap. Thanks any help would be greatly appreciated!