Don & Ron, unfortunately we don't get many posts on the L series and larger around here. Must be cause they must not break much 
Course we all know that mechanical things will eventually break and/or need servicing.
The lack of grease zerks in the front driveshaft is soemwhat concerning but doesn't seem to be isolated to just your model. My 04 BX23's front driveshaft doesn't have them either. We had another member remark how he found his slightly older BX shaft & coupler worn out. The boot was torn covered the joints. He indicates that he's going to include inspection and greasing of the joints during his regular servicing. I know this isn't any help to your problem but I post it to show that the front axle can wear across model lines. No doubt extreme service contributed to the wear.
Have you already ordered the parts? If so keep us appraised of how it's going.
Dave
Course we all know that mechanical things will eventually break and/or need servicing.The lack of grease zerks in the front driveshaft is soemwhat concerning but doesn't seem to be isolated to just your model. My 04 BX23's front driveshaft doesn't have them either. We had another member remark how he found his slightly older BX shaft & coupler worn out. The boot was torn covered the joints. He indicates that he's going to include inspection and greasing of the joints during his regular servicing. I know this isn't any help to your problem but I post it to show that the front axle can wear across model lines. No doubt extreme service contributed to the wear.
Have you already ordered the parts? If so keep us appraised of how it's going.
Dave
