your wheel clamp has a 5mm allen head screw?

did you tighten up the clamp then hit with a mallet then back off the clamp, repeat, then set for end play?

BTW i used a Lisle bearing nstaller kit that I purchased from JC Whitney and it worked very well. For me it was easier than using an old race.

Remember: on the c-class install the inner bearings inner race and bearings before installing the grease seal.