I did the normal inspection and found 1 bolt worked its way out of the trans mount and was sitting on the crossmember, the other 2 were loose. The insulator stud and bushings had gone missing. The b-house bolts were in between, torque to specs, and finger tight. Motor mounts were worn. The clutch disc, pressure plate, and flywheel didn't look bad with no grease or oil on any surface. I installed the following new, motor mounts, clutch kit, resurfaced flywheel, trans mount, insulator stud and bushings. Torqued all bolts to specs. Cleaned the flywheel, then cleaned it again just before installing the clutch disc. The clutch linkage seems to not to be binding. Still have the chatter. I enhanced the clutch chatter by applying the brake and slowly letting out the clutch. The chatter seems to be internal only everything is tight and to specs. I only see the t-case output shaft, driveshaft, and rear tires chattering. The t-case output shaft has no play. I ran out of time last night or I would have checked the clutch fork for movement. The thing that crossed my mind was the trans input shaft had some play in it (splines were in good shape). Maybe the TO bearing is binding on the shaft causing clutch chatter? The chatter was there before, and after work was completed. It must be something on the short list I haven't addressed yet. Thoughts?