Then you should just have the one bearing and race on the outside.
He said 2 speed axle, which is only available on the big trucks with full floating axle shafts, so he's going to have both inner and outer bearings and races on the hubs.
Races can be removed with a punch from the opposite side of the hub, but you need to be careful to keep them lined up as they come out, not cocked. The service manual covers the procedure for the front hubs (
Link (from 54 Shop Manual)), and for the rear full floating hubs like you have, the procedure will be similar. The special tool for the race removal is basically a punch. For race re-installation, a set of bearing drivers is definitely recommended to keep them straight, although I have done the job (on smaller trucks) with a punch after starting them with a block of wood across the race.
