This 2007 and 2008 Chevrolet Avalanche all have the rain sensor feature option. Please select the part windshield with rain sensor from the drop down menu if you have a rain sensor. If you are unsure if you have a rain sensor then you can provide us with the VIN when we schedule the appointment and we can confirm that you have that feature. Having the rain sensor feature doesn’t always necessarily mean that your replacement windshield will be more expensive.  The estimated replacement cost is around $300.00.  Windshield replacement prices and costs can vary on more then one variable so quotes can vary as well.  Factors that affect price costs and quotes are brand of glass, condition of vehicle, tools and procedures used to remove the existing windshield, location of vehicle in relation to the auto glass installer and wholesaler.