Driveline 43 5/16" L, 1-3/8" - 6 spline x 1-3/8" smooth, 540 RPM / 3013-6003

Thanks Marc for taking the time to answer my questions regarding the water pump and thermostat order. You went out of your way to check the status and call me back in short time. First seen your website today and was not going to order since no phone to call if a problem but decided to do the email contact. Your response to the first email was really fast and conbine that with a contact phone in your return email and willingness to help me out is appreciated. Will order from you again if needed. Thanks, Rick Ecklund