I need help on how to convert my whirlpool dryer from propane to natural gas please help gayle

You need to order a conversion kit. With the model number, take a look here: Parts & Accessories | Shop & Find Lawn & Garden, Appliance Parts at Sears Parts Direct | SearsPartsDirect.com from Sears for a parts list and a diagram and see if you can handle it. You have to check for leaks using with a bubble solution available at a hardware store. Will involve relacing an orifice and/or reseting the regulator if there is one.