I want to replace the U and cardone joints before I reinstall the front drive shaft.

I had Spicer greasable U joints pressed into the axle shafts and will likely do the same for the drive shaft.

Does someone have a favorite or suggested parts supplier? Maybe even a site sponsor?

Is there a compelling reason to not use greasable? I like the idea or purging the old grease out. I realize non-greasable "can" be stronger, assuming the don't use the same cores and simply skip the drilling of the grease zerk hole. But I prefer to break a U joint versus a shaft. Is my logic flawed?