i worked part time as a sorter for almost 6 years. transfered over into the mechanic shop and am now in the machinist union. when i am 55 or whatever do i get a little pension from the teamsters because i became vested after the 5 years?
First, be sure you are, in fact, vested. You probably are, but if you did not have enough hours in each of the five years, then there's a possibility you aren't.
A pension that is just barely vested is normally paid at age 65 or so (Normal Retirement Age) so it won't be worth much by then.
What pension plan were you under while part-time? If it was a Teamster plan, it probably has a website with all the info you need.