So at the beginning of the season had all new bellows and gimball bearing amd shift cables installed at a local shop after running the boat for a max of 5 hours because we park it in the swim area and ski off are smaller boat it just quit moving and free revs take it back to the shop and they say a seal in the upper went bad and striped all the gears out. They say there was no sign of this before should i belive that and was wondering if those seals are something that would usually get replace when doing a service to that extent and of they should be liabel for the 1500 they want to fix it