every ten years or when the bellows begin to show signs of dry rot or any water is present inside boot observed when doing anual u joint service and spline grease and inspection
if they are not installed correctly they will need to be changed much more often
Frank Martin
USCG Captain - 50 Ton Master
Great Lakes Inland Waterways
Near shore Salt water
Towing assist
owner Calumet Marine .com
The South End provides useful resources and discussion forums for those that fish The South End of Lake Michigan for Salmon, Steelhead, Perch, and Bass as well as elsewhere in the Region and Chicago area.