axle arm bearing cup removal and insertion tools
video at bottom of page
These tools pull the old cups out and also reinsert the new ones. You will need a 36mm ring spanner.
Citroen made a modification to the bearing sizes on both axles. If you have a pre May 1953 car or van, then the bearings are a different width to ones fitted after this date. They are 20mm wide and the bearings sold after that date are 17mm wide.
The swinging arms were also altered, being, the depths of the recesses for the cups were shortened by 3mm on each side. You can fit 17mm wide bearings to an old type [pre May 1953] swinging arm but must use 3mm wide spacers behind the cups. Spacers are available from this site. Please enquire for prices and availabilty.