Pug

This is my first post on here. We have just purchased a 2011 Mack 613 Pinnacle to use on our farm. The steps on the drivers side cab in between the first and second step is a long step. I'm kind of short leg and my Dad is in his eighties so hard for us both to get up in the truck. Other brands of trucks were the same. It has the battery box step not fuel tank step. Is there any way to make this a shorter step or any ideas of how to help this. If anyone has made something or any ideas would be greatly appreciated. Love the truck. Thanks Pug.