I have a 2005 2500 hd gmc 4x4 reg cab 8' bed duramax. Can I turn the bolts under the front end to get a little hight out of it or would you have to get an inlinement or would it be fine. Truck has a utility cap and always loaded with tools.

also with the slightly bigger tires they rub just a little mostly notice when backing up and the wheeel is turnd just right

Same deal here...capped and loaded w/ tools...I cranked mine up to level out the truck, looks better...You really should address the shocks though, u can buy extenders for the factory shocks pretty cheap, u are basically taking the travel from the factory shocks when u crank the bars. I personally got the Bilstein 5100's and they ride great, no more bounce at all and u don't need the extenders. As for alignment, I havent done mine yet but I plan to soon and it is advised.

Check the "Suspension" section. Your question has been asked and answered hundreds of times.

Yes search tool is awesome..... You can crank the torsions yes. And YES alignment is needed! I wouldn't drive to far without an alignment after that, or you will be buying new tires sooner than later.

Moved to Suspension & Steering...