Originally Posted by Rick Thomson

You could try them, it's a 0.15 mm difference in size. But normally the 3/32" should fit. Are you sure the pulley is the right one, and with the original holes still intact?

When you will use the 2.5mm balls. Use the ceramic ones,(#1016) it's a big improvement to the cars performance over the normal steel balls. And the wear of ceramic balls is significantly smaller.

Rick