I grease my U joints before each trip. Last coach went 95,000 miles with original U joints. You can’t grease them too much, so have at it. 76,000 on this coach and U joint cups looked good last time I had driveshaft out when changing differential ratio. (Gear set)
Driveshaft angle should not exceed 3° with no more than 1/2° variance between the two. The angle is the difference between the plane the transmission output shaft and the plane of the driveshaft. Same holds true at other end at differential pinion shaft. (Differential input shaft)
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Harry
2008 Monaco Camelot 40' PDQ
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