Hi Matthew, I'm glad to assist you. Unfortunately, this is not compatible. This is for the extended cab only. We do not carry the one for a Crew cab type for the rear doors. You might need other parts or a repair manual for your truck. We have a vehicle-specific repair manual with part number 24067, by Haynes publication. Grab our sale price offer and click the link below to order today. I hope this helps. Happy shopping. https://www.carparts.com/details/GMC/Sierra_1500_Classic/Haynes/Repair_Manual/2007/SLT/8_Cyl_5-dot-3L/H1624067.html?can=CPJE1043

Hi, Upon checking, this is for an extended cab and not compatible with the crew cab. For accuracy of fitment, please follow the guidelines below: To check the fitment please use our Vehicle Selector — which can be found towards the top of the homepage as well as all categories, search results, and product pages — can help verify if a part will fit your specific application. To enter your application, simply select your vehicle’s year, make, model, sub-model, and engine type and click “Go.” Once your application is selected, you’ll see a “Guaranteed to Fit” badge if the part will fit, and we recommend that you also double-check Your Vehicle Fit Details as well as the Vehicle Fitment Information table on the product page.