Re: Chrysler 354HC
Are you sure? They use the same impeller for 35s, 40s, 45s, 50s, and 55s. They have a larger diameter than the housing. You have to squeeze them in there by turning the driveshaft clockwise (looking down) while you push the housing down. A little soap helps. At low speeds it acts like a positive displacement pump when the vanes contact the sides. At higher speeds it acts as a centrifugal pump as the vanes move away from the sides. Fairly brilliant design, actually. Just don't starve them of water. If it fits on the shaft, it should be the right one. There are some with 10 vanes and some with 5. They all work if they fit the shaft.