How do you change the timing belt on a 1994 Chevy S10 2.2 liter?

easy there is no timing belt on a 2.2 chevyy s10. a chain. and the whole front of the engine must be removed including the oil pan. there are marks on the gears. make sure they are lined up before the chain is removed. but i have never heard of one breaking. making noise but not coming apart.