At this point, spread the silver truck sides far enough apart so that there is enough
space for the replacement wheelset axles to drop in. Once you've done that, CAREFULLY press
the replacement axle wheelset into tho rear axle position. The axle is a slight press
fit. Then, CAREFULLY squeeze the silver truck sides back together, MAKING SURE all
axles especially the last one, is in the hole that holds the axles.