There are many options to choose from when installing tonneau covers for your truck and yes some require drilling. However, lucky for you there are many exceptionally good covers that require only a wrench to install and even better no drilling. Many of the non-drill tonneau covers use a clamping system to really get that cover attached securely. And as I mentioned earlier does not require any drilling. Just find the right size for you truck and make sure you have a variety of wrenches and away you go. You might want to check out this site for further research and a variety of covers available that fits you needs - http://www.autoanything.com/tonneau-covers/51A2.aspx#q19 .