How do I install a new starter in a 93 Dodge Ram van B-250 8 cyl.

Park van so that you can safely access the starter. I use ramps under front wheels and put it in park and set the parking brakes. Disconnect positive battery cable at battery, disconnect starter battery cable and ignition wires from starter solenoid (remember terminal locations as these will attach to new starter solenoid). Remove old starter. Replace with new starter. Re-attach wiring in reverse order.