well, when the cap dropped off the U-Joint, it was on the topside of the driveshaft--away from me. so, i couldnt see it.

i just reached down, grabbed the U-Joint cap and pushed it back on.

however, if the zirk fitting's "direction" is critical, i'm back to wondering if i should just rotate the driveshaft 90 degrees and rebolt/test drive it a few times to see if the driveshaft's balance/rotational position is critical.

any final thoughts? (should i rotate/rebolt the driveshaft or just change the U-Joint?)

thanks for everyone's input,

mechttu
Houston, TX