On the second day of my three day ride of training to become a driver, the first day I drove myself, we (myself and my sup) found that I was too short to reach the pedals to safely be able to shift the vehicle. The next day I drove (third day of my three days) I was given another truck where the seat was closer to the pedals and it was an automatic. I was told I got this truck because of how short I am so that I could reach. I used this same vehicle on my training route for the remaining 30 days. I passed my probationary period to become a swing driver. However now there are issues with me trying to swing and drive different trucks because I can not reach the pedals in most of them. Management does not know what to do since they have now passed me and made an accommodation during my probationary period yet now, I'm unable to reach in most of the vehicles for routes I am swinging on. The union is beginning to file grievances for the days they send me home for the 8 hour guarantee. Everyone is trying to figure out what to do (management/union) but I wondered if someone on here would possibly be able to tell me what I can do. I am 5'1 therefore am considered of "normal height". Also - no modifications can be made to the truck or seat because it is considered unsafe (no pedal extensions or seat cushions behind my back etc). Thank you for anything you guys can help me with for this!