The rivet size is specified in the SRM, sometimes you can increase rivet diameter if for example the original rivets were DD, but you want to use AD. Thats not so bad if the rivets are universal head. If the required rivets are to be countersunk, then obviously, material thickness needs to be...
How was the bearing previously retained?
Without that information, repair action will be a little difficult to be determined. If I was going to try to secure a bearing in a fuel environment, I would be looking to use PR1422 A or B, probably B, but it still needs manufactures approval.
You are not going to get an aircraft overhaul manual. Try asking for an aircraft maintenance manual.
You say you want information for 737, OK, what series and what type of basic configuration?
