I considered one of the knockoffs, but from reading on here, Im better off to bite the bullet and pay..... Here are the reasons and why. Its a 5.9 going in a 87 dakota. I have to use the serpentine belt system to clear the radiator. V-belt drive goes about 1/2 in or so into the radiator. I want AC. Its my understanding that the knockoffs will not work with the serpentine system. I hate paying double, but in the grand scheme of things its 200 more, and from what I have read, trying to use the serpentine and AC with the knockoffs just dont work. If im wrong on any of this, please tell me. Also, is $390.95 about the best deal? Thanks for everyone's input.