I agree with Grigg for a daily driver. You said you want to make a hotrod. Do you plan on lots of horsepower and torque? Or are you planning a daily driver? If you are making a daily driver that won't be hot rodded and just a cool driver, I would follow Grigg's advice. If you are going to race around and have big horses under the truck, or have a show truck, then I would go to an aftermarket frame that is boxed and has cross bracing meant to make the frame more rigid for high performance. Personally, I like the stock frames. They can be boxed and made rigid also. I guess it comes down to what you can do, or want to do.
