timing belt change

Hello i´m new here and i just got me a b2000 -91, it has 113000 km on the clock and the timing belt should have been changed at 100000 km so i guess it¨s not safe to drive around with any longer, my question is, should i let a shop do it, or can i do it myself ? what do you think

the bigger ???? is how good are you at working on trucks and cars if your pretty good then get you a book and a belt and go at it if not then take it to a shop. for me working on cars and trucks would be easyer if i was not 350 pounds (im in shape ROUND lol) but if you dont know nothing about how cars work then i would say shop

your ok to keep that timing belt for a while. but if your that worried. id havea shop do it cause timing is everything

take it to a shop unless you got skills you don't want to f#@k up your timing and its a lot of work if you don't know what you are doing