Vic, b7800 hst 4x4. Rattle at idle, doesnt matter in 2 of 4 wd. I believe noise comming from 1 or both drive shafts. One has maybe a 1/4 in end play, and I can see the universal coupleing a bit loose where the roll pin attaches to the universal coupleing. Is there a way to remove the driveshaft end play to reduce the slop?Completely quiet when clutch is depresses. Any ideas what to look for? Do the ball bearings in the drive coupler get lubed, if so how?