Does switching unions allow you to still keep seniority?

Super 9

Active Member
Right now I'm about to get into Local 447 IAM union at my Metro Phila. hub for working out in the yard. Was wondering if I decided later on to switch positions to inside the warehouse doing package handling, and switch to Teamsters, would I keep my seniority, benefits and pay increases?

I'm just curious is all, as to what I could do in the future at UPS. I've heard I could stay in the same union and become a mechanic or truck driver at my hub though.
 
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