I have a friend who is selling his 98'24 valve and says it is a manual pump not the newer style electronics. Is that right ? If so any guess on what it is worth. it is a 3500 ext. cab dually 5 speed . 140k miles. Good condition. A few dings here and there, over all pretty nice. If it is true and the price is right, i would sell my 95' auto. Any help would be great. Larry.