Dr. J. is correct, big washer is used on CL350 and the races should go in after powdercoating. However, I did not use a slide hammer to install the bearings (I would have though if I actually had one). Instead, I used a piece of 1.5" PVC pipe meant for a drain (straight with flared end) available at any big box home improvement store. Another user on DTT posted a picture of it I think. The pipe should be just big enough to slide over the stem. After I had properly greased the tapered bearing (Google it), I set the stack up and using the extra washer to protect the bearing I placed the pvc over the stem and hit it with a mallet to seat the bearing. All it took was a couple hits.