Yea, it got out of hand way to fast and Im not sure why everyone was so upset you were replacing them. The crimped ends youre talking about, are they the ones that go from solid to rubber? There are a few places where it cannot be separated and I believe thats where J is getting confused. They are permanent crimps. Second, cutting those sections out and using the correct hose is ok as long as you use barbs and clamp it good. Personally I would want to double clamp them just in case. This is how also all of the after market coolers hook up. Youre mechanic just wants to make sure its done 100% correct so you dont have a line blow off driving down the road.