Cody, I used the keys to drop my 2wd Yukon 2+ inches in the front only because my truck has 16 inch wheels and I have no plans to replace them with larger ones. I believe that I would experience a much better ride with the spindles and it would also be easier to align. When using the keys, you need to be full aware on pot holes, speed bumps and other things in the road or else the suspension will bottom out bad. I cut my bump stops down some but am not using shocks for lowered trucks, so far my shocks have not fully bottomed , just the a-arm smacking the bump stop cup. I cringe every time my wife takes it cause she doesn't slow down for anything and doesn't understand why driving a lowered vehicle is any different than a regular car. Just about every car/ truck I have owned has been lowered so I am used to a different driving style. If I were to do it over again, I would buy the spindles and do the free travel mod on the rear and it would probably drive like a normal vehicle. Good luck, Mike.