I have an issue with the lower unit skipping when at higher RPM. ITs the clutch or gears worn or something. I am looking to swap out lower units. I have a Model 458HB (1972), I have found another unit that is a 455HG (1974). Will this unit work with my outboard. The only difference is that there are screens on the outside of the casing. Its either water intake or some kind of vent. Mine do not have this. I have attached the URL of a picture of the unit I am looking at. Does anyone else know where I should be looking for a cheap used lower unit. Any help would be appreciated...
-Chad
http://www.outboardnuts.com/2008_04290039.JPG
-Chad
http://www.outboardnuts.com/2008_04290039.JPG