Greg, I checked yesterday, with stethoscope, and noise seemed to be loudest at the center of the transmission gear box, other than at the end of the PTO shaft. Also noticed the noise got louder when BRAKE was pushed. Checked creeper oil and gears, and it was same level as transmission and could not find any metal in box. Following Chips post, I Shifted PTO main in and out of gear several times, and also PTO speed lever. Thinking about TruChaos post, pointed it downhill for a while, then uphill for a while, no change. Then decided to drive it around yard, to see if any change in different gears, PTO in/out etc. AND WHILE DOING SO THE NOISE STOPPED. Put the hog back on and PTO in gear. No noise. Cut some tall grass, changed gears etc, no noise. Did notice, PTO main is now harder to engage, but I think that is due to the clutch not being adjusted as you suggested. Now I wonder what made the noise quit, did something finally break, or grind off? I just Dont know, but have a feeling it had something to do with either the PTO main or speed and may return. Anyway, I will now begin to try to adjust clutch, and see where that goes. Any suggestions appreciated.
Dave in MS