Caterpillar Excavator Buckets (D linkage and DB linkage 330c,330d)

I am in search of attachments for 330cl excavators, D linkage. It seems the DB linkage on the newer 330 d's and possibly 336's have a 10mm larger pin diameter but similar bucket ear dimensions.

Has anyone ever tried weld boring db linkage buckets to fit the old d linkage?

Ultimately what I need is some good CAT d linkage attachments if any available for sale.

Caterpillar Excavator Buckets (D linkage and DB linkage 330c,330d)