I think its time to replace my u-joints. I have no problems with doing the job,but I have a question about the joints themselves. I've read the Adults Only u-joint cross reference thread. I'm usually the "I'll pay the extra for the marine part", but in this case, it seems like it may be moot. I know Don likes the Spicer u-joints, but my local sources have Neapco, Napa Premium, and Precision - Moog parts. Are these good parts, or should I bite the bullet and order the rockwells? I am hoping to get these replaced before the weekend and ordering will pretty much quash that.