953C BBX bucket pins and bushings

My loader is need of some P&B work on the bucket and Z bar linkage. There is play in the Z bar linkage connecting to the bucket and both loader arms to the bucket.

Question is does those bearings, bushings have to be pressed in?

Part number 8G-4022 (16A) for what Cat calls a bearing on the arm to bucket and 7P-3466 (2A)for the what Cat calls a bushing on the Z-bar linkage (2)



Planning on new P&B's for the loader arms and the Z bar.

Attached Images