It depends on how many degrees it is out. I assume since you installed bigger tires you also recently upgraded to leveling springs. More than likely, the bushings that were installed at the factory have little to no adjustment in them. You can save some $ by going to your local autoparts (advance, autozone, napa) yourself and getting adjustable camber bushings that have the adjustment range needed for your vehicle. I highly recommend getting the 2 piece dual adjustable bushings from napa, or ingalls. This way you never have to buy new bushings again as they have plenty of adjustment. You can find more info on these by using the search function...
If your truck never sees asphalt, then you can install them yourself and just eye it up to get it close. But personally, I would spend the $40 to get it done right.
Also, most shops cant align a ttb to save their @$$. Find a shop that knows how and become good friends with the alignment tech. If your anything like me (constantly upgrading), you'll be back many times.
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