We do not stock the 235/40R-18 DWS but we can order a set in for you. Lead time on ordered products is typically 7 to 10 business days to your door. Our current mail order price is $147.00 per tire with FREE delivery and right now we are offering an instant $25.00 discount with the purchase of a new set. Give us a call at 1.888.459.4080 when you're ready to order and anyone of our sales agents would be happy to set you up. Just make sure the agent you speak with knows you are a member here so the site receives credit.