advise on a diferential

[fercho71]

hi !!!!!!!!
hello everyone i am new to this page i just bought a 1966 chevy 3/4 ton pick up i believe its a c-20 not an expert so i dont really now the advise i need its i jus come to a problem the diferential its damage so i need to fix it or replace it i live in sandiego so i can look on a junkyard in tijuana and get it on better price than here in the us so my cuestion its what year for a diferential should i look for?
is it true that a camaro will fit and what year should thi be?
thank you i will pos mi pictures soon